PETROLEUM DEVELOPMENT CORP
S-2/A, 1997-10-27
DRILLING OIL & GAS WELLS
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<PAGE>
 
    
 AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 27, 1997     
                                                   
                                                REGISTRATION NO. 333-36369     
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                               ----------------
                                
                             AMENDMENT NO. 1     
                                       
                                    TO     
                                   FORM S-2
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                               ----------------
 
                       PETROLEUM DEVELOPMENT CORPORATION
            (Exact name of registrant as specified in its charter)
 
                   NEVADA                               95-2636730
      (State or other jurisdiction of         (I.R.S. Employer Identification
       incorporation or organization)                      No.)
 
                             103 EAST MAIN STREET
                        BRIDGEPORT, WEST VIRGINIA 26330
                                (304) 842-6256
         (Address, including zip code, and telephone number, including
            area code, of registrant's principal executive offices)
 
                               ----------------
 
                         STEVEN R. WILLIAMS, PRESIDENT
                       PETROLEUM DEVELOPMENT CORPORATION
                             103 EAST MAIN STREET
                        BRIDGEPORT, WEST VIRGINIA 26330
                                (304) 842-6256
           (Name, address, including zip code, and telephone number,
                  including area code, of agent for service)
 
                               ----------------
 
 
                                  COPIES TO:      DAVID J. SORIN, ESQUIRE
         LAURENCE S. LESE, ESQUIRE                  BUCHANAN INGERSOLL
       DUANE, MORRIS & HECKSCHER LLP               500 COLLEGE ROAD EAST
       1667 K STREET N.W., SUITE 700                PRINCETON, NJ 08540
         WASHINGTON, DC 20006-1608                    (609) 987-6800
               (202) 776-7815
       
                               ----------------
 
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OR UNTIL THIS REGISTRATION STATEMENT SHALL
THEREAFTER BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO
SAID SECTION 8(A), MAY DETERMINE.
 
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<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A         +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR   +
+THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE      +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY SUCH STATE.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                                                File No. 333-36369
                  
               SUBJECT TO COMPLETION, DATED OCTOBER 27, 1997     
 
PROSPECTUS
 
                                3,850,000 SHARES
 
           [LOGO OF PETROLEUM DEVELOPMENT CORPORATION APPEARS HERE]

                       PETROLEUM DEVELOPMENT CORPORATION
 
                                  COMMON STOCK
 
                                  -----------
 
  Of the 3,850,000 shares of Common Stock offered hereby, 3,500,000 shares are
being sold by the Company and 350,000 shares are being sold by the Selling
Stockholders. The Company will not receive any proceeds from the sale of shares
of Common Stock by the Selling Stockholders. See "Principal and Selling
Stockholders."
 
  The Common Stock is currently traded on the Nasdaq National Market under the
symbol PETD. On September 23, 1997, the last reported sale price of the Common
Stock on the Nasdaq National Market was $8 11/16 per share. See "Price Range of
Common Stock."
 
                                  -----------
 
            THE SHARES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK.
                    SEE "RISK FACTORS" COMMENCING ON PAGE 5.
 
                                  -----------
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                         PRICE TO UNDERWRITING  PROCEEDS TO      PROCEEDS TO
                          PUBLIC  DISCOUNT (1)  COMPANY (2)  SELLING STOCKHOLDERS
- ---------------------------------------------------------------------------------
<S>                      <C>      <C>           <C>          <C>
Per Share...............    $          $             $                $
- ---------------------------------------------------------------------------------
Total (3)...............  $          $             $                $
</TABLE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
(1) Excludes a non-accountable expense allowance of $150,000 payable to the
    Representative of the Underwriters. See "Underwriting" for indemnification
    arrangements.
(2) Before deducting the expenses of the offering payable by the Company,
    estimated at $550,000, including the non-accountable expense allowance.
(3) The Company has granted the Underwriters a 30-day option to purchase up to
    an additional 577,500 shares of Common Stock solely to cover over-
    allotments, if any. If all such shares are purchased, the total Price to
    Public, Underwriting Discount and Proceeds to Company will be $    , $    ,
    and $    , respectively. See "Underwriting."
 
                                  -----------
 
  The shares of Common Stock are offered by the several Underwriters, subject
to prior sale, when, as and if delivered to and accepted by them and subject to
their right to reject any order in whole or in part. It is expected that
certificates of such shares will be available for delivery on or about October
  , 1997 at the offices of Pennsylvania Merchant Group Ltd in West
Conshohocken, Pennsylvania.
 
                        PENNSYLVANIA MERCHANT GROUP LTD
 
                                       , 1997
<PAGE>
 
 
 
                              [MAP APPEARS HERE]
Map of the eastern United States, including the Company's headquarters located
in Bridgeport, West Virginia and the Company's natural gas and oil production
operation areas in the West Virginia, Pennsylvania, Ohio and Tennessee
portions of the Appalachian Basin, as well as the Company's operations in the
Michigan Basin.
 
 
  CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN, OR OTHERWISE AFFECT THE PRICE OF THE COMMON STOCK,
INCLUDING ENTERING INTO STABILIZING BIDS, EFFECTING SYNDICATE COVERING
TRANSACTIONS OR IMPOSING PENALTY BIDS. FOR A DESCRIPTION OF THESE ACTIVITIES,
SEE "UNDERWRITING."
 
  IN CONNECTION WITH THIS OFFERING, CERTAIN UNDERWRITERS AND SELLING GROUP
MEMBERS, IF ANY, MAY ENGAGE IN PASSIVE MARKET MAKING TRANSACTIONS IN THE
COMMON STOCK ON THE NASDAQ NATIONAL MARKET IN ACCORDANCE WITH RULE 103 OF
REGULATION M. SEE "UNDERWRITING."
 
                               ----------------
 
  The Company's name and logo and those of its subsidiaries are trademarks of
the Company and its subsidiaries.
<PAGE>
 
 
                               PROSPECTUS SUMMARY
 
  The following summary is qualified in its entirety by, and should be read in
conjunction with, the more detailed information and consolidated financial
statements (including the notes thereto) appearing elsewhere in this
Prospectus. Unless the text indicates otherwise, the "Company" refers to
Petroleum Development Corporation and its wholly owned subsidiaries, Paramount
Natural Gas Company, Paramount Transmission Corporation, Riley Natural Gas
Company and PDC Securities Incorporated. Except where otherwise indicated, all
information in this Prospectus assumes no exercise of the Underwriters' over-
allotment option. For explanations of certain technical terms used in this
Prospectus, see "Glossary of Certain Industry Terms" on page 49.
 
                                  THE COMPANY
 
  Petroleum Development Corporation (the "Company") is a regional independent
energy company engaged primarily in the development, production and marketing
of natural gas. The Company has grown primarily through increased drilling and
development activities, the acquisition of natural gas producing wells and the
expansion of its natural gas marketing activities. As of June 30, 1997, the
Company operated approximately 1,170 natural gas wells located in the
Appalachian Basin and in the Michigan Basin, and had net proved reserves of
47.3 Bcf of natural gas. The wells operated by the Company currently produce an
aggregate of approximately 22,000 Mcf of natural gas per day, of which the
Company's share is approximately 5,100 Mcf.
 
  In 1996, more than 22.5 Tcf of natural gas were consumed in the United
States. Uses of natural gas include steam, process heat and co-generation for
industrial uses; feedstock for chemicals used in fertilizer and gasoline
production; electric generation and residential and commercial heating. It is
expected that natural gas will continue to increase market share relative to
other fossil fuels due to its efficiency and positive safety and environmental
characteristics. In addition, the Company believes that deregulation of certain
sectors of the natural gas industry, which has resulted in lower prices for
natural gas, is expected to increase market demand.
 
  The majority of the wells operated by the Company are located in West
Virginia and Pennsylvania within the Appalachian Basin. The Appalachian Basin
is characterized by shallow natural gas formations, which generally have
provided for highly predictable drilling success rates. In addition, because
wells drilled in the Appalachian Basin are closer to the large demand centers
in the northeastern United States, natural gas from this area typically has
commanded a price premium relative to natural gas produced in areas such as the
Gulf Coast and Mid-Continent regions of the United States. In 1997, the Company
commenced drilling in the Antrim shale formation of the Michigan Basin, and,
through August 31, 1997, had drilled 24 wells in this location. In addition to
its drilling activities, from time to time the Company purchases natural gas
producing properties. For example, in July 1996, the Company purchased 188
producing wells located in West Virginia.
 
  In April 1996, the Company acquired Riley Natural Gas Company ("RNG"), an
Appalachian Basin natural gas marketing company, which aggregates and resells
natural gas developed by the Company and other producers. This acquisition
allowed the Company to diversify its operations beyond natural gas drilling and
production. RNG has established relationships with many of the small natural
gas producers in the Appalachian Basin and has significant expertise in the
natural gas end-user market. In addition, RNG has extensive experience in the
use of hedging strategies, which the Company utilizes to reduce the financial
impact on the Company of changes in the price of natural gas.
 
  Since 1984, the Company, as managing general partner, has sponsored limited
partnerships formed to engage in drilling operations. The Company typically
retains a 20% ownership interest in these drilling limited partnerships. In
1996, the Company raised $24.6 million through four public drilling
partnerships, making it the sponsor of the largest public oil and gas
partnership program in the United States in that year. The drilling programs
have provided the Company with access to the capital resources necessary to
expand its drilling opportunities and to maintain the geological, engineering,
marketing and other resources necessary to support such activities.
 
                                       1
<PAGE>
 
  The Company's growth strategy is to expand its drilling operations in the
Appalachian Basin and the Michigan Basin, acquire producing properties, pursue
geographic expansion, reduce risks inherent in natural gas development and
marketing and expand its strategic relationships.
 
  The Company was incorporated in Nevada in 1955 and commenced oil and gas
operations in 1969. Its principal executive offices are located at 103 East
Main Street, Bridgeport, West Virginia 26330, and its telephone number is (304)
842-6256.
 
                                  THE OFFERING
 
Common Stock offered by the           
Company.............................  3,500,000 shares
 
Common Stock offered by the Selling     
Stockholders........................    350,000 shares
 
Common Stock to be outstanding        
after the offering..................  14,485,753 shares(1)
 
Use of proceeds.....................  To fund development drilling on new and
                                      existing properties, potential
                                      acquisition of producing properties and
                                      general corporate purposes, including
                                      working capital and possible acquisitions
                                      of complementary businesses.
 
Nasdaq National Market symbol.......  PETD
- --------
(1) Based on 10,985,753 shares of Common Stock outstanding on September 15,
    1997. Excludes an aggregate of 2,182,650 shares of Common Stock reserved
    for issuance under the Company's stock option plans and outstanding
    warrants, of which: (i) 2,057,650 shares are issuable upon the exercise of
    stock options outstanding as of September 15, 1997, at a weighted average
    exercise price of $1.96 per share, and (ii) 125,000 shares are issuable
    upon the exercise of warrants outstanding as of September 15, 1997, at an
    exercise price of $6.00 per share. See "Management--Stock Option Plans" and
    "Description of Capital Stock--Warrants."
 
                                       2
<PAGE>
 
 
                      SUMMARY CONSOLIDATED FINANCIAL DATA
 
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>   
<CAPTION>
                                                                    SIX MONTHS ENDED
                                  YEAR ENDED DECEMBER 31,               JUNE 30,
                         ------------------------------------------ -----------------
                          1992    1993    1994    1995   1996(1)(2) 1996(1)  1997(2)
                         ------- ------- ------- ------- ---------- -------- --------
                                                                       (UNAUDITED)
<S>                      <C>     <C>     <C>     <C>     <C>        <C>      <C>
STATEMENT OF OPERATIONS
 DATA:
Oil and gas well
 drilling operations.... $14,931 $12,073 $15,190 $13,941  $18,698   $ 10,733 $ 19,277
Oil and gas sales.......   4,867   4,471   4,361   4,151   26,051      8,964   16,349
Well operations and
 pipeline income and
 other income...........   3,368   3,941   4,255   4,255    4,865      2,078    2,699
                         ------- ------- ------- -------  -------   -------- --------
Total revenues.......... $23,166 $20,485 $23,806 $22,347  $49,614   $ 21,775 $ 38,325
                         ======= ======= ======= =======  =======   ======== ========
Income before taxes and
 extraordinary item..... $ 2,614 $ 1,596 $ 1,098 $ 1,832  $ 4,650   $  2,462 $  5,334
                         ======= ======= ======= =======  =======   ======== ========
Net income.............. $ 1,748 $ 1,590 $   922 $ 1,481  $ 3,549   $  1,940 $  3,910
                         ======= ======= ======= =======  =======   ======== ========
Earnings per common and
 common equivalent
 share.................. $  0.16 $  0.14 $  0.08 $  0.13  $  0.31   $   0.17 $   0.33
Weighted average common
 shares outstanding.....  11,191  11,564  11,990  11,607   11,573     11,363   11,700
OTHER FINANCIAL DATA:
Depreciation, depletion
 and amortization....... $ 1,671 $ 1,717 $ 1,848 $ 2,152  $ 2,310   $  1,207 $  1,220
Capital expenditures....   2,830   2,630   5,607   3,910   10,416      1,093    2,712
EBITDA..................   4,341   3,727   3,247   4,304    7,340      3,809    6,759
</TABLE>    
 
<TABLE>
<CAPTION>
                                                  JUNE 30, 1997
                                              ----------------------
                                              ACTUAL  AS ADJUSTED(3)
                                              ------  --------------
<S>                                           <C>     <C>
BALANCE SHEET DATA:
Working capital.............................. $ (313)    $29,263
Total assets................................. 50,080      79,656
Total long-term debt, excluding current
 maturities..................................  3,695       3,695
Stockholders' equity......................... 27,010      56,586
</TABLE>
- --------
(1) In April 1996, the Company acquired the outstanding capital stock of RNG.
    Such acquisition has been accounted for under the purchase method of
    accounting, and, accordingly, the results of continuing operations of RNG
    have been included in the Company's Consolidated Statement of Operations
    since the date of the acquisition. See Note 12 of Notes to Consolidated
    Financial Statements.
 
(2) In July 1996, the Company acquired 188 producing wells from Angerman
    Associates, Inc. See Note 12 of Notes to Consolidated Financial Statements.
 
(3) Adjusted to reflect (i) the sale of 500,000 shares of Common Stock pursuant
    to a private placement consummated on September 15, 1997 and the $2.0
    million net proceeds therefrom and (ii) the estimated net proceeds from the
    sale of 3,500,000 shares of Common Stock offered by the Company hereby.
 
                                       3
<PAGE>
 
 
                             SUMMARY OPERATING DATA
 
<TABLE>
<CAPTION>
                                                               SIX MONTHS ENDED
                                 YEAR ENDED DECEMBER 31,            JUNE 30,
                            ---------------------------------- -----------------
                             1992   1993   1994   1995   1996     1996     1997
                            ------ ------ ------ ------ ------ -------- --------
<S>                         <C>    <C>    <C>    <C>    <C>    <C>      <C>
Development wells drilled:
  Productive..............      73     49     71     64     92       55      100
  Dry.....................       7      7      4      8      5        3        6
                            ------ ------ ------ ------ ------ -------- --------
  Total...................      80     56     75     72     97       58      106
Net development wells
 drilled:
  Productive..............    14.5    8.8   13.0   11.8   16.4     10.0     24.8
  Dry.....................     1.4    1.3    0.8    1.6    1.0      0.6      1.6
                            ------ ------ ------ ------ ------ -------- --------
  Total...................    15.9   10.1   13.8   13.4   17.4     10.6     26.4
Production(1):
  Oil (MBbls).............      16     10     11     11      7        3        4
  Natural gas (MMcf)......     948    965  1,195  1,336  1,495      666      878
  Equivalent MMcfs(2).....   1,044  1,025  1,261  1,402  1,537      684      902
Average Sales Price(3):
  Oil (per Bbl)...........  $18.21 $16.62 $14.41 $15.80 $16.35 $  17.78 $  16.48
  Natural gas (per Mcf)...  $ 2.41 $ 2.24 $ 2.01 $ 1.75 $ 3.04 $   3.15 $   2.58
Average production cost
 (lifting cost) per
 equivalent Mcf(4)........  $ 0.48 $ 0.57 $ 0.58 $ 0.53 $ 0.63 $   0.80 $   0.66
</TABLE>
- --------
(1) Production as shown in the table is net to the Company and is determined by
    multiplying the gross production volume of properties in which the Company
    has an interest by the percentage of the leasehold or other property
    interest owned by the Company.
 
(2) A ratio of energy content of natural gas and oil (six Mcf of natural gas
    equals one barrel of oil) was used to obtain a conversion factor to convert
    oil production into equivalent Mcfs of natural gas.
 
(3) Average sale price does not include the effect of hedge transactions.
 
(4) Production costs represent oil and gas operating expenses as reflected in
    the financial statements of the Company.
 
                              SUMMARY RESERVE DATA
 
 
<TABLE>   
<CAPTION>
                                    AS OF DECEMBER 31,
                          ---------------------------------------     AS OF
                           1992    1993    1994    1995    1996   JUNE 30, 1997
                          ------- ------- ------- ------- ------- -------------
<S>                       <C>     <C>     <C>     <C>     <C>     <C>
ESTIMATED NET PROVED
 RESERVES
Oil (MBbls)..............      79      91      79     140      81         41
Natural gas (MMcf).......  24,980  24,660  32,225  33,829  43,312     47,333
Equivalent MMcfs.........  25,448  25,206  33,699  32,669  43,798     47,579
Standardized measure of
 discounted future cash
 flows (after-
 tax)($000)(1)........... $15,515 $14,018 $14,445 $21,060 $34,262    $16,924
</TABLE>    
- --------
(1) Represents the estimated future net revenues after income taxes discounted
    at 10% per annum.
 
                                       4
<PAGE>
 
                                 RISK FACTORS
 
  An investment in the Common Stock involves a high degree of risk. This
Prospectus contains forward-looking statements within the meaning of Section
27A of the Securities Act of 1933, as amended (the "Securities Act"),
including, without limitation, trends impacting the natural gas industry
(including prices and market demand), the Company's success in drilling and
development activities, the expected effect of deregulation and the Company's
ability to expand geographically and implement its acquisition strategy, that
involve risks and uncertainties. The Company's actual results and development
could differ materially from those discussed or implied in the forward-looking
statements as a result of certain factors. Factors that may cause or
contribute to such differences include those discussed under "Risk Factors,"
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" and "Business," as well as those discussed elsewhere in this
Prospectus. The Company cautions the reader, however, that this list of
factors may not be exhaustive. Prospective investors should consider carefully
the following factors, in addition to the other information in this
Prospectus, prior to making their investment decision.
 
VOLATILITY OF NATURAL GAS PRICES AND MARKETS
 
  The Company's revenues, results of operations, financial condition,
profitability, ability to obtain additional capital and future rate of growth
depend substantially on prevailing prices for natural gas, which are highly
volatile. Prices for natural gas are subject to wide fluctuations in response
to relatively minor changes in the supply of and demand for natural gas,
market uncertainty and a variety of additional factors, all of which are
beyond the control of the Company. These factors include actual and
anticipated weather conditions, changes in the demand for, and supply of,
natural gas, seasonality, the supply and price of Canadian and other foreign
natural gas, the price and availability of alternative fuels, governmental
regulations, speculation in the natural gas market and regional or national
economic conditions. These external factors and the volatile nature of the
energy markets make it difficult to accurately estimate future prices of
natural gas. Decreases in natural gas prices may materially adversely affect
the Company's financial condition, liquidity, ability to finance planned
capital expenditures, results of operations and ability to produce natural gas
economically.
 
  In addition to general factors affecting prices for natural gas, the
Company's prices for natural gas are affected by geographic location. Prices
for natural gas sold from Appalachian wells historically have been higher than
those for natural gas produced in the Gulf Coast and Mid-Continent regions of
the United States, generally because of the geographic proximity to the large
demand centers in the Northeast natural gas markets. No assurance can be given
that this price advantage will continue. In Michigan and other new locations
of operations for the Company, it is likely that natural gas will be sold at a
lower premium compared to average national prices, and possibly even below
average national prices. The Company will attempt to evaluate the impact of
price differences prior to drilling in any new area. Furthermore, from time to
time, a surplus of natural gas occurs in West Virginia, Pennsylvania, and many
other areas of the United States. The effect of a surplus may be to reduce the
price the Company receives for its natural gas production, or to reduce the
amount of natural gas that the Company may produce and sell.
 
  The availability of a ready market for the Company's natural gas also
depends on the proximity of the Company's natural gas reserves to pipelines,
the capacity of such pipelines and the cooperation of pipeline owners. In
addition, under certain of its natural gas sales arrangements, the Company is
subject to the risk of reduced purchases or access to pipelines under firm and
interruptible transportation agreements. Wells may temporarily be shut in for
lack of a market or due to inadequacy or unavailability of pipeline or
gathering system capacity. Any significant reduction or curtailment of the
Company's production for an extended period of time could have a material
adverse effect on its business, financial condition and results of operations.
See "Management's Discussion and Analysis of Financial Condition and Results
of Operations."
 
DRILLING RISKS
 
  The selection of prospects for natural gas drilling is inherently risky, and
the Company cannot predict whether any prospect will produce commercial
quantities of natural gas. The costs of drilling, completing and operating
wells are often uncertain, and drilling operations may be curtailed, delayed
or canceled as a result of a
 
                                       5
<PAGE>
 
variety of factors, including unexpected drilling conditions, compliance with
governmental requirements and shortages or delays in the availability of
drilling rigs and equipment, and labor shortages. Additionally, as the prices
paid to the Company by its drilling partners are frequently fixed before the
wells are drilled or are determined solely upon the well depth, the Company is
subject to the risk that prices of goods or services used in drilling could
increase, rendering its drilling contracts less profitable or unprofitable. In
addition, the natural gas industry has experienced periods of rapid cost
increases from time to time, and within short periods of time. If such
increases were to occur in the future, they would adversely affect the ability
of the Company to acquire additional natural gas leases, equipment and
supplies. A substantial industry-wide increase in drilling operations in the
United States could result in the decreased availability of drilling rigs and
gas field tubular goods. This in turn could lead to shortages of equipment and
material, which would make timely drilling and completion of wells impossible.
The Company cannot predict whether its drilling activities will prove to be
economically successful, and, if not successful, such activities will have a
material adverse effect on the Company's business, financial condition and
results of operations. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations" and "Business--Exploration and
Development Activities."
 
ABILITY TO REPLACE RESERVES; UNCERTAINTY OF RESERVE INFORMATION AND FUTURE
RESERVE ESTIMATES
 
  In general, the rate of production from a natural gas property declines as
its reserves are depleted, with the rate of decline depending upon the
property's reservoir characteristics. Unless the Company conducts successful
exploration and development activities or acquires properties containing
proved reserves, the Company's proved reserves will decline. The Company's
future success is therefore dependent upon its ability to replace and expand
its existing natural gas reserves through the acquisition of producing
properties and the exploration for and development of additional natural gas
reserves. There can be no assurance that the Company's acquisition,
exploration and development activities will result in the replacement of, or
additions to, the Company's reserves.
 
  Acquisition of economically viable producing properties generally requires,
among other things, accurate assessments of recoverable reserves, future oil
and natural gas prices, operating costs and potential environmental risks and
other liabilities. Such assessments are inherently imprecise and inexact, and
their accuracy is uncertain. Estimates of the Company's proved reserves and
future net revenues appearing elsewhere in this Prospectus and estimates made
for the Company in future periods are and will be based primarily on
independent engineering reports prepared for the Company. Natural gas reserves
cannot be precisely measured, and estimates made by other engineers might
differ materially from such estimates. There can be no assurance that
estimated prices will be realized or that the volumes projected will be
produced as indicated in a summary reserve report, if at all. Estimates of
economically recoverable natural gas reserves, and future net cash flows,
depend upon a number of factors, including assumptions concerning future
natural gas prices, future operating costs, development costs, severance and
excise taxes, workover and remedial costs, governmental regulations and other
factors beyond the control of the Company. Certain events, including
production history, acquisitions and sales of properties, changes in prices
and further drilling and development, could result in increases or decreases
of estimated proved reserves or estimates of future net revenues. The
Company's inability to replace its reserves or receive accurate reserve
estimates will likely have a material adverse effect on the Company's
business, financial condition or results of operations. See "Business--
Properties," Note 17 of Notes to Consolidated Financial Statements and the
Summary Reserve Report attached to this Prospectus as Appendix A.
 
WORKING CAPITAL REQUIREMENTS
 
  The natural gas industry is capital-intensive. The Company's business and
operations require a substantial investment of working capital, principally to
finance operating activities. The Company requires significant capital
reserves in connection with its acquisition and leasing of producing and
potentially producing properties as well as for drilling expenses.
Historically, the Company has relied upon funds generated by its drilling
operations, primarily through its interests in the drilling partnerships it
has sponsored, and through bank borrowing. The use of funds generated from the
drilling partnerships is restricted to future drilling operations. The Company
also finances its other cash needs through funds from operations. There can be
no assurance that such sources will continue to be available to the Company
for its working capital needs in the future on terms acceptable to the
Company, if at all. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations--Liquidity and Capital Resources."
 
                                       6
<PAGE>
 
RISKS ASSOCIATED WITH DRILLING LIMITED PARTNERSHIPS
 
  Since 1984, the Company has served as the managing general partner of 42
drilling limited partnerships, which have provided an aggregate of
approximately $137.0 million for drilling activities. These funds represent
the majority of the funds utilized by the Company in development activities to
date. As competition for investment capital for both public and private
drilling programs is intense, the Company competes with a number of the
companies that offer interests in drilling partnerships which have a wide
range of investment objectives and program structures. There can be no
assurance that the Company will be able to continue to raise the necessary
funds from drilling limited partnerships for investment and development, and
such inability will likely have a material adverse effect on the Company's
business, financial condition or results of operations.
 
  The Company may be subject to certain risks with respect to its sales and
management of the drilling limited partnerships. The Company is contingently
liable as general partner for the obligations of these partnerships, including
responsibility for their day-to-day operations and liabilities that cannot be
repaid from partnership assets or insurance proceeds. Additionally, the
Company may be exposed to litigation in connection with partnership activities
and may find it necessary to advance funds on behalf of certain partnerships
to protect the value of their natural gas assets. The Company also faces
potential conflicts of interest in its role as manager of the limited
partnerships, such as provisions in limited partnership agreements: (i)
limiting the Company's ability to benefit disproportionately from discoveries
made by the limited partnerships; (ii) prohibiting the Company's acquisition
of certain property interests if to do so would conflict with the interests of
the limited partnerships; and (iii) providing for an increase in distributions
to the investor partners and a decrease in distributions to the Company for
periods ranging from three to ten years, in the event that certain performance
and earnings goals are not met by a particular well or a particular drilling
partnership. The result of such provisions could be to reduce the Company's
earnings from its participation in the drilling partnerships.
 
  As the prices paid to the Company by its investor partners for the Company's
services are frequently fixed before the wells are drilled or are determined
solely on the well depth, the Company is subject to the risk that prices of
goods or services used in the development process could increase, rendering
its contracts with its investor partners less profitable or unprofitable. As
the general partner of the partnerships, the Company is also subject to a
variety of tax regulations, which may change from time to time. Additionally,
the Company and its wholly owned broker-dealer subsidiary, PDC Securities
Incorporated ("PDC Securities"), the dealer-manager of the drilling limited
partnerships, are subject to various federal and state securities regulations,
and failure to comply with these regulations could result in liability to the
Company and PDC Securities. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations" and "Business--Financing of
Drilling Activities."
 
DEPENDENCE ON KEY PERSONNEL
 
  The success of the Company depends to a large degree on the efforts of its
three senior officers, James N. Ryan, Chief Executive Officer and Chairman of
the Board of Directors, Steven R. Williams, President and a director, and Dale
G. Rettinger, Executive Vice President and Chief Financial Officer and a
director. The loss of the services of any of these individuals could have a
material adverse effect on the Company's business, financial condition or
results of operations. The Company has employment agreements with each of
these individuals and maintains key-man insurance on the life of each of them,
in the amount of $5.0 million for Mr. Ryan and $1.0 million for each of
Messrs. Williams and Rettinger. In the event that the services of any of
Messrs. Ryan, Williams or Rettinger become unavailable to the Company, there
is no assurance that the Company could find a qualified replacement on
acceptable terms. See "Management--Employment and Other Agreements and
Arrangements" and "Management--Key-Man Insurance."
 
DERIVATIVES AND HEDGING RISKS
 
  The Company utilizes commodity-based derivative instruments as hedges to
manage a portion of its exposure to price volatility stemming from its natural
gas sales and marketing activities. These instruments consist of natural gas
futures contracts traded on the NYMEX. The futures contracts hedge committed
and anticipated natural gas purchases and sales, generally forecasted to occur
within a three- to twelve-month period. The Company does not hold or issue
derivatives for trading or speculative purposes. In order for futures
contracts
 
                                       7
<PAGE>
 
to serve as effective hedges, there must be sufficient correlation to the
underlying hedged transaction. The use of hedges cannot completely alleviate
the Company's exposure to price volatility. In addition, the use of hedges
will prevent the Company from receiving the full economic benefit of increases
in oil and natural gas prices. See "Business--Hedging Activities."
 
COMPETITION
 
  The Company encounters competition from numerous other natural gas
companies, drilling programs and partnerships in all areas of its operations,
including drilling and marketing natural gas, acquiring producing properties
and obtaining desirable natural gas leases. Many of these competitors possess
larger staffs and greater financial resources than the Company, which may
enable such competitors to identify and acquire desirable producing properties
and drilling prospects more economically. The Company's ability to explore for
natural gas prospects and to acquire additional properties in the future
depends on its ability to conduct its operations, to evaluate and select
suitable properties and to consummate transactions in this highly competitive
environment. The Company also faces intense competition in the marketing of
natural gas from competitors, including other producers as well as marketing
companies. Also, international developments and the possible improved
economics of domestic natural gas exploration may influence other oil
companies to increase their domestic natural gas exploration. The Company's
business, financial condition or results of operations could be materially
adversely affected by such competition. See "Business--Competition."
 
GOVERNMENTAL REGULATION
 
  Natural gas operations are subject to various federal, state and local
government regulations, which may be changed from time to time in response to
economic or political conditions. Matters subject to regulation include
discharge permits for drilling operations, drilling bonds, reports concerning
operations, the spacing of wells, unitization and pooling of properties and
taxation. From time to time, regulatory agencies have imposed price controls
and limitations on production by restricting the rate of flow of natural gas
wells below actual production capability in order to conserve supplies of
natural gas. The natural gas industry is subject to extensive tax laws,
including laws relating to depletion and intangible drilling costs. Potential
changes to these laws could have adverse effects on the Company that cannot be
predicted. Legal requirements are frequently changed and are subject to
interpretation, and the Company is unable to predict the ultimate cost of
compliance with these requirements or their effect on its operations.
Additionally, the Company is impacted by state and federal regulation, such as
regulation by the Federal Energy Regulatory Commission ("FERC") of pipeline
transportation, which requires that pipelines provide firm and interruptible
transportation service on an open access basis. Although the Company believes
that it is in material compliance with all such laws and regulations, there is
no assurance that new laws or regulations or new interpretations of existing
laws and regulations will not substantially increase the costs of compliance
or otherwise adversely affect the Company's business, financial condition or
results of operations. See "Business--Governmental Regulation."
 
ENVIRONMENTAL RISKS AND REGULATIONS
 
  The development, production, handling, storage, transportation and disposal
of natural gas and oil, by-products thereof and other substances and materials
produced or used in connection with natural gas operations are subject to
federal, state and local laws and regulations primarily relating to the
protection of the environment and human health. There are numerous natural
hazards involved in the drilling of natural gas and oil wells, including
unexpected or unusual formations, pressures, blowouts involving possible
damages to property and third parties, surface damages, damage to and loss of
equipment, reservoir damage, discharge of natural gas or pollutants into the
air, soil or water, oil spills and loss of reserves. No assurance can be given
that existing laws or regulations, as currently interpreted or reinterpreted
in the future, or future laws or regulations will not materially adversely
affect the Company's business, financial condition or results of operations.
The Company may thus be subject to liability for pollution, abuses of the
environment and other similar damages. See "Business--Governmental
Regulation--Environmental Regulations."
 
                                       8
<PAGE>
 
OPERATING HAZARDS AND LIABILITIES
 
  The Company's exploration and production operations include a variety of
operating risks, including the risk of fire, explosions, blowouts, craterings,
pipe failure, casing collapse, abnormally pressured formations, and
environmental hazards such as gas leaks, ruptures and discharges of toxic gas,
the occurrence of any of which could result in substantial losses to the
Company's business, financial condition or results of operations due to injury
and loss of life, severe damage to and destruction of property, natural
resources and equipment, pollution and other environmental damage, clean-up
responsibilities, regulatory investigation and penalties and suspension of
operations. The Company's pipeline, gathering and distribution operations are
subject to the many hazards inherent in the natural gas industry. These
hazards include damage to wells, pipelines and other related equipment and
surrounding properties caused by hurricanes, floods, fires and other acts of
God, inadvertent damage from construction equipment, leakage of natural gas
and other hydrocarbons, fires and explosions and other hazards that could also
result in personal injury and loss of life, pollution and suspension of
operations.
 
  Any significant problems related to its facilities could adversely affect
the Company's ability to conduct its operations. The Company maintains
insurance against some, but not all, potential risks; however, there can be no
assurance that such insurance will be adequate to cover any losses or exposure
for liability. Furthermore, the Company cannot predict whether insurance will
continue to be available at premium levels that justify its purchase or
whether insurance will be available at all. The occurrence of a significant
event not fully insured against could materially adversely affect the
Company's business, financial condition or results of operations. See
"Business--Operating Hazards and Insurance."
 
MANAGEMENT OF GROWTH RISKS
 
  The Company has experienced significant growth in the recent past due to
increased drilling and development activities, the acquisition of natural gas
producing wells and the expansion of its natural gas marketing activities. In
1996, the Company purchased RNG, which expanded the range of the Company's
operations to include natural gas marketing, purchased 188 producing wells in
the Appalachian Basin and drilled 97 new wells. Additionally, the Company's
drilling programs have provided large amounts of capital for drilling
projects. The Company's rapid growth has placed, and is expected to continue
to place, a significant strain on the Company's financial, technical,
operational and administrative resources. The Company has relied in the past,
and expects to continue to rely in the future, on outside investment partners
and independent subcontractors that have provided the Company with drilling
funds and operational services. As part of its strategy, the Company intends
to expand into new geographical areas. Such expansion will subject the Company
to increased state and local regulation, different geological formations and
environmental conditions and the need for additional skilled and reliable
subcontractors. The success of such expansion will depend on the ability of
the Company and its geologists, engineers and subcontractors to adapt to the
requirements of such new locations. The failure of the Company to continue to
upgrade its technical, operational and administrative resources, the
occurrence of unexpected expansion difficulties or the reduced availability of
investment partners and subcontractors, could have a material adverse effect
on the Company's business, financial condition or results of operations. There
can be no assurance that the Company will be successful in achieving growth or
any other aspect of its business strategy. See "Management's Discussion and
Analysis of Financial Condition and Results of Operations" and "Business--
Strategy."
 
DEPENDENCE UPON SUBCONTRACTORS
 
  The nature of the Company's business, including the variety of skills
necessary for the exploration, drilling, extraction and marketing of natural
gas, requires specialized personnel. The Company relies on subcontractors for
many of these functions, both to take advantage of their expertise and because
of geographical and seasonal constraints. Additionally, although the Company
endeavors to ascertain the financial condition of its subcontractors, if
subcontractors fail to timely pay for materials and services, the wells
operated by the Company could be subject to materialmen's and workmen's liens.
In that event, the Company could incur additional costs in discharging such
liens. The Company's business, financial condition or results of operations
may be adversely affected by the inability of the Company to retain a
sufficient number of skilled and reliable subcontractors with adequate
financial resources. See "Business--Exploration and Developmental Activities."
 
                                       9
<PAGE>
 
VOLATILITY OF STOCK PRICES
 
  Stock prices for natural gas companies depend upon a variety of factors,
including the prevailing prices for natural gas, seasonality, supply and
demand for natural gas, media and analysts' reports and changes in
environmental regulations and other governmental policies. The price of the
Common Stock has been, and likely will continue to be, affected by these
factors. The trading price of the Common Stock could be subject to wide
fluctuations in response to quarter-to-quarter variations in operating results
(historically, the Company's operating results have been strongest in the
first and fourth quarters of the year), announcements of unanticipated
operating results by the Company and other events or factors. In addition, the
stock market has from time to time experienced extreme price and volume
fluctuations, which have particularly affected the market price for certain
companies in a manner often unrelated to the operating performance of these
companies. These broad market fluctuations may adversely affect the market
price of the Common Stock. See "Management's Discussion and Analysis of
Financial Conditions and Results of Operations" and "Price Range of Common
Stock."
 
ANTI-TAKEOVER PROVISIONS
 
  Certain provisions of the Nevada general corporation law and the Company's
By-Laws may tend to deter potential unsolicited offers or other efforts to
obtain control of the Company that are not approved by the Board of Directors
or a majority of the Company's stockholders entitled to vote. Such provisions
may therefore deprive the stockholders of opportunities to sell shares of
Common Stock at prices higher than prevailing market prices. See "Description
of Capital Stock--Certain Corporate Anti-Takeover Provisions."
 
SHARES ELIGIBLE FOR FUTURE SALE
 
  Sales of substantial amounts of Common Stock in the public market following
this offering could adversely affect the market price for the Company's Common
Stock. The number of shares of Common Stock available for sale in the public
market is limited by restrictions under the Securities Act and lock-up
agreements under which the Company, its officers and directors and the Selling
Stockholders have agreed that they will not, without the prior written consent
of the Representative of the Underwriters, offer for sale, contract to sell,
sell or otherwise dispose of any shares of Common Stock for a period of 180
days from the date of this Prospectus. After these contractual restrictions
expire, such persons will be permitted to sell these shares in the public
market, subject only to applicable restrictions prescribed by Rule 144 of the
Securities Act. Immediately following the offering, 14,485,753 shares of
Common Stock will be outstanding. Of these shares, an aggregate of 13,015,739
shares, consisting of (i) the 3,850,000 shares sold in this offering (plus any
additional shares sold upon the Underwriters' exercise of their over-allotment
option) and (ii) an aggregate of 9,165,739 shares, without taking into account
the lock-up agreements referred to above, issued and outstanding prior to the
date the Registration Statement is declared effective will be freely
transferable by persons other than "affiliates" of the Company without
restriction or further registration under the Securities Act. The remaining
shares may not be sold in the absence of registration under the Securities Act
unless an exemption from registration is available, including an exemption
afforded by Rule 144. See "Shares Eligible for Future Sale."
 
NO DIVIDENDS
 
  The Company has never declared or paid dividends on its Common Stock and
does not anticipate paying any dividends in the foreseeable future. The
Company intends to retain any earnings for operations and expansion of its
business. See "Dividend Policy."
 
                                      10
<PAGE>
 
                                USE OF PROCEEDS
 
  The net proceeds from the sale of the 3,500,000 shares of Common Stock
offered hereby by the Company at an assumed offering price of $8 11/16 per
share are estimated to be $27.6 million after deduction of underwriting
discounts and estimated offering expenses payable by the Company. The Company
will not receive any proceeds from the sale of the shares of Common Stock by
the Selling Stockholders. See "Principal and Selling Stockholders."
 
  The Company intends to use the net proceeds from this offering for
development drilling on new and existing properties, potential acquisition of
producing properties and for general corporate purposes, including working
capital and possible acquisitions of complementary businesses, including, for
example, the Company's possible acquisition of a natural gas gathering system
at a cost to the Company of $1.4 million. See "Business--Exploration and
Development Activities--Transportation." Although the Company reviews and
considers possible acquisitions on an ongoing basis, other than as set forth
in the preceding sentence, no specific acquisitions are being negotiated or
planned as of the date of this Prospectus. The actual use of proceeds may vary
depending on the Company's assessment of the relative attractiveness of
available acquisition and development opportunities. Pending such uses, the
net proceeds to the Company from this offering will be invested in short-term,
investment-grade, interest-bearing instruments.
 
                          PRICE RANGE OF COMMON STOCK
 
  The following table sets forth, for the periods indicated, the high and low
daily sales prices per share of the Common Stock as reported by the Nasdaq
National Market for the periods indicated. The Common Stock is traded on the
Nasdaq National Market under the symbol PETD.
 
<TABLE>
<CAPTION>
                                                                 HIGH     LOW
                                                               -------- --------
   <S>                                                         <C>      <C>
   YEAR ENDED DECEMBER 31, 1995:
   First Quarter.............................................. $1 3/8   $  7/8
   Second Quarter.............................................  1 9/16   1 1/16
   Third Quarter..............................................  1 3/8    1
   Fourth Quarter.............................................  1 5/8      31/32
   YEAR ENDED DECEMBER 31, 1996:
   First Quarter.............................................. $2 1/8   $1 5/16
   Second Quarter.............................................  2 13/16  1 7/8
   Third Quarter..............................................  3 9/16   2 7/16
   Fourth Quarter.............................................  6 3/16   3 1/2
   YEAR ENDED DECEMBER 31, 1997:
   First Quarter.............................................. $5 1/8   $3 9/16
   Second Quarter.............................................  5 5/16   3
   Third Quarter (through September 23, 1997).................  11 7/16  4 11/16
</TABLE>
 
  The last reported sale price of the Common Stock on the Nasdaq National
Market on September 23, 1997 was $8 11/16 per share.
 
  As of June 30, 1997, there were approximately 1,794 record holders of the
Company's Common Stock.
 
                                DIVIDEND POLICY
 
  The Company has never declared or paid cash dividends on its Common Stock
and does not anticipate paying any cash dividends in the foreseeable future.
The Company currently intends to retain its earnings for operations and
expansion of its business. Furthermore, the Company's credit agreement
prohibits the Company from paying dividends in excess of 50% of the Company's
net income for the respective fiscal year. The declaration and payment by the
Company of any dividends on its Common Stock in the future and the amount
thereof will, nevertheless, be at the discretion of the Company's Board of
Directors and will depend upon the Company's operating results, financial
condition, cash requirements, future prospects and other factors deemed
relevant by the Company's Board of Directors.
 
                                      11
<PAGE>
 
                                CAPITALIZATION
 
  The following table sets forth the capitalization of the Company as of June
30, 1997 and as adjusted to give effect to the sale of 3,500,000 shares of
Common Stock offered by the Company hereby (assuming an offering price of $8
11/16 per share and after deducting the underwriting discount and estimated
offering expenses payable by the Company). See "Use of Proceeds."
 
<TABLE>
<CAPTION>
                                                            JUNE 30, 1997
                                                        -----------------------
                                                        ACTUAL   AS ADJUSTED(1)
                                                        -------  --------------
                                                            (IN THOUSANDS)
<S>                                                     <C>      <C>
Long-term debt(2)...................................... $ 3,695     $ 3,695
                                                        -------     -------
Stockholders' equity:
  Common Stock, Class A, $0.01 par value;
   authorized 2,750,000 shares; none issued............     --          --
  Common Stock, $0.01 par value;
   authorized 22,250,000 shares; 10,485,753 shares
   issued and outstanding; 14,485,753 shares issued and
   outstanding, as adjusted(1)(3)......................     105         145
Additional paid-in capital.............................   6,639      36,129
Warrants outstanding...................................     --           46
Retained earnings......................................  20,337      20,337
Unamortized stock award................................     (71)        (71)
                                                        -------     -------
  Total stockholders' equity...........................  27,010      56,586
                                                        -------     -------
    Total capitalization............................... $30,705     $60,281
                                                        =======     =======
</TABLE>
- --------
(1) Reflects a pro forma adjustment to include 500,000 shares of Common Stock
    issued and sold by the Company on September 15, 1997. See "Management's
    Discussion and Analysis of Financial Condition and Results of Operations."
 
(2) For information concerning the Company's long-term debt, see Note 3 of
    Notes to Consolidated Financial Statements.
 
(3) Excludes an aggregate of 2,182,650 shares of Common Stock reserved for
    issuance under the Company's stock option plans and outstanding warrants,
    of which: (i) 2,057,650 shares are issuable upon the exercise of stock
    options outstanding as of September 15, 1997, at a weighted average
    exercise price of $1.96, and (ii) 125,000 shares are issuable upon the
    exercise of warrants outstanding as of September 15, 1997, at an exercise
    price of $6.00 per share. See "Management--Stock Option Plans" and
    "Description of Capital Stock."
 
                                      12
<PAGE>
 
                     SELECTED CONSOLIDATED FINANCIAL DATA
 
  The following selected consolidated financial data as of December 31, 1992,
1993, 1994, 1995 and 1996 and for each of the years in the five-year period
ended December 31, 1996 have been derived from the audited consolidated
financial statements of the Company. The following selected consolidated
financial data as of June 30, 1996 and 1997 and for each of the six-month
periods ended June 30, 1996 and 1997 have been derived from unaudited
consolidated financial statements and include all adjustments (consisting only
of normal recurring accruals) that the Company considers necessary for a fair
presentation of such financial information for those periods. The results of
operations for the six months ended June 30, 1997 are not necessarily
indicative of the results that may be expected for any other interim period or
for the full year. The data set forth below should be read in conjunction with
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" and the Consolidated Financial Statements of the Company and
related notes included elsewhere herein. All information is in thousands,
except per share data.
 
<TABLE>
<CAPTION>
                                                                       SIX MONTHS ENDED
                                   YEAR ENDED DECEMBER 31,                 JUNE 30,
                           ------------------------------------------  -----------------
                            1992     1993    1994     1995     1996       1996     1997
                           -------  ------- -------  -------  -------  -------- --------
                                                                          (UNAUDITED)
 <S>                       <C>      <C>     <C>      <C>      <C>      <C>      <C>
 STATEMENT OF OPERATIONS
  DATA:
 Revenues:
  Oil and gas well
   drilling operations...  $14,931  $12,073 $15,190  $13,941  $18,698  $ 10,733 $ 19,277
  Oil and gas sales......    4,867    4,471   4,361    4,151   26,051     8,964   16,349
  Well operations and
   pipeline income.......    2,936    3,843   3,730    3,750    3,929     1,847    2,248
  Other income...........      432       98     525      504      936       231      451
                           -------  ------- -------  -------  -------  -------- --------
   Total revenues........   23,166   20,485  23,806   22,347   49,614    21,775   38,325
                           -------  ------- -------  -------  -------  -------- --------
 Costs and expenses:
  Cost of oil and gas
   well drilling
   operations............   13,347   11,100  14,289   11,943   15,780     8,770   15,759
  Oil and gas purchases
   and production
   costs.................    3,643    4,120   4,067    4,139   24,190     8,084   14,716
  General and
   administrative
   expenses..............    1,837    1,897   2,204    1,961    2,304     1,112    1,092
  Depreciation, depletion
   and amortization......    1,671    1,717   1,848    2,152    2,310     1,208    1,220
  Interest...............       54       55     300      320      380       139      204
                           -------  ------- -------  -------  -------  -------- --------
   Total costs and
    expenses.............   20,552   18,889  22,708   20,515   44,964    19,313   32,991
                           -------  ------- -------  -------  -------  -------- --------
 Income before income
  taxes and extraordinary
  item...................    2,614    1,596   1,098    1,832    4,650     2,462    5,334
 Income taxes............      866      275     177      351    1,101       522    1,424
                           -------  ------- -------  -------  -------  -------- --------
 Income before
  extraordinary item.....    1,748    1,321     921    1,481    3,549     1,940    3,910
 Extraordinary item net
  of income taxes........      --       269     --       --       --        --       --
                           -------  ------- -------  -------  -------  -------- --------
 Net income..............  $ 1,748  $ 1,590 $   921  $ 1,481  $ 3,549  $  1,940 $  3,910
                           =======  ======= =======  =======  =======  ======== ========
 Earnings per common and
  common equivalent
  share..................  $  0.16  $  0.14 $  0.08  $  0.13  $  0.31  $   0.17 $   0.33
                           =======  ======= =======  =======  =======  ======== ========
 Average common and
  common
  equivalent shares
  outstanding
  during the year
  (period)...............   11,191   11,564  11,990   11,607   11,573    11,363   11,700
                           =======  ======= =======  =======  =======  ======== ========
 BALANCE SHEET DATA (END
  OF PERIOD):
 Working capital.........  $  (590) $   289 $(1,614) $(1,520) $(2,357) $    717 $   (313)
 Total assets............   34,632   36,413  38,325   40,620   63,604    38,465   50,080
 Long-term debt,
  excluding current
  maturities.............    3,969    3,167   3,100    2,500    5,320     2,700    3,695
 Stockholders' equity....   15,347   17,236  18,381   19,921   23,072    21,442   27,010
</TABLE>
 
                                      13
<PAGE>
 
  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
                                  OPERATIONS
 
  The following discussion should be read in conjunction with the Consolidated
Financial Statements of the Company and related notes included therein.
 
OVERVIEW
 
  The Company is a regional independent energy company engaged primarily in
the development, production and marketing of natural gas. The Company has
drilled and produced natural gas and oil in the Appalachian Basin since 1969,
and currently operates approximately 1,170 natural gas wells in West Virginia,
Ohio, Pennsylvania, Michigan and Tennessee. While early activities included
drilling and operating producing oil wells, all of the Company's current
drilling activities, and more than 95% of its reserve and production value,
result from natural gas operations. In 1997, the Company expanded its drilling
activities to include drilling in the Antrim shale formation of the Michigan
Basin.
 
  The Company derives the majority of its revenues from natural gas drilling
operations and natural gas sales, and also generates revenues from natural gas
marketing (aggregating and reselling) and natural gas gathering and
transportation. The Company drills wells for Company-sponsored drilling
partnerships as well as for Company-owned properties. The Company also engages
in the marketing of third party natural gas production and earns operating and
pipeline fees for managing wells and gathering natural gas.
 
  Cost of oil and gas well drilling operations includes the direct costs of
drilling wells. Oil and gas purchases and production costs include natural gas
purchased for resale in the Company's marketing activities as well as the
costs of production for Company-owned and other wells.
 
  The Company's results will vary based in part on changes in the market price
of natural gas. Since 1992, the Company's annual average natural gas sales
price has ranged from a high of $3.04 per Mcf in 1996 to a low of $1.75 per
Mcf in 1995. For the year ended December 31, 1996, and for the six months
ended June 30, 1997, the Company's average sales prices for natural gas were
$3.04 per Mcf and $2.58 per Mcf, respectively. Natural gas drilled in the
Appalachian Basin typically has commanded a price premium relative to natural
gas produced in areas such as the Gulf Coast and Mid-Continent regions of the
United States, due to the Appalachian Basin's proximity to the large demand
centers in the northeastern United States. From October 1996 to September
1997, Appalachian natural gas on the CNG system received a premium which
varied from $0.20 per Mcf to $0.55 per Mcf and averaged almost $0.33 per Mcf
for that time period.
 
  As part of its business strategy, during 1996 the Company made two
acquisitions. On April 1, 1996, the Company acquired RNG in exchange for
shares of the Company's Common Stock having a market value of $449,100. RNG is
an Appalachian Basin natural gas marketing company that specializes in the
acquisition and aggregation of Appalachian Basin natural gas production. The
acquisition was accounted for by the Company as a purchase and is reflected as
such in the Company's financial statements for 1996. Natural gas purchased
from third parties is resold with a lower margin than natural gas produced by
the Company.
   
  In July 1996, the Company completed the acquisition of 188 natural gas wells
located primarily in Gilmer County, West Virginia from Angerman Associates,
Inc., a Pittsburgh-based production company, for a cash purchase price of $3.3
million. Independent petroleum engineers have estimated remaining proved
developed reserves in these properties at 4.3 Bcf of natural gas and 27,000
barrels of oil on December 31, 1996. Net production per day from the
acquisition averaged approximately 750 Mcf and 8 Bbls during 1996.     
 
  The Company believes that its available funds, together with cash flow
expected to be generated from operations, existing credit facilities and the
net proceeds of this offering will be adequate to satisfy operations for at
least 24 months following the completion of this offering.
 
 
                                      14
<PAGE>
 
 PRODUCTION
 
  The following table shows the Company's net production in Bbls of crude oil
and in Mcf of natural gas and the costs and weighted average selling prices
thereof, for the periods indicated.
 
<TABLE>
<CAPTION>
                                                              SIX MONTHS ENDED
                                YEAR ENDED DECEMBER 31,           JUNE 30,
                           ---------------------------------- -----------------
                            1992   1993   1994   1995   1996     1996     1997
                           ------ ------ ------ ------ ------ -------- --------
<S>                        <C>    <C>    <C>    <C>    <C>    <C>      <C>
Production(1):
  Oil (MBbls).............     16     10     11     11      7        3        4
  Natural Gas (MMcf)......    948    965  1,195  1,336  1,495      666      878
  Equivalent MMcfs(2).....  1,044  1,025  1,261  1,402  1,537      684      902
Average sales price(3):
  Oil (per Bbl)........... $18.21 $16.62 $14.41 $15.80 $16.35 $  17.78 $  16.48
  Natural gas (per Mcf)... $ 2.41 $ 2.24 $ 2.01 $ 1.75 $ 3.04 $   3.15 $   2.58
Average production cost
 (lifting cost) per
 equivalent Mcf(4)........ $ 0.48 $ 0.57 $ 0.58 $ 0.53 $ 0.63 $   0.80 $   0.66
</TABLE>
- --------
(1) Production as shown in the table is net to the Company and is determined
    by multiplying the gross production volume of properties in which the
    Company has an interest by the percentage of the leasehold or other
    property interest owned by the Company.
 
(2) A ratio of energy content of natural gas and oil (six Mcf of natural gas
    equals one barrel of oil) was used to obtain a conversion factor to
    convert oil production into equivalent Mcfs of natural gas.
 
(3) Average sale price does not include the effect of hedge transactions.
 
(4) Production costs represent oil and gas operating expenses as reflected in
    the financial statements of the Company.
 
RESULTS OF OPERATIONS
 
 SIX MONTHS ENDED JUNE 30, 1997 COMPARED WITH JUNE 30, 1996
 
  Revenues. Total revenues for the six months ended June 30, 1997 were $38.3
million compared to $21.8 million for the six months ended June 30, 1996, an
increase of approximately $16.5 million, or 75.7%. Such increase was a result
of increased drilling revenues and oil and gas sales. Drilling revenues for
the six months ended June 30, 1997 were $19.3 million compared to $10.7
million for the six months ended June 30, 1996, an increase of approximately
$8.6 million, or 80.4%. Such increase resulted from higher volumes of drilling
and completion activities, due to increased levels of drilling partnership-
related financing. Oil and gas sales for the six months ended June 30, 1997
were $16.3 million compared to $9.0 million for the six months ended June 30,
1996, an increase of approximately $7.3 million, or 81.1%. Such increase was
due primarily to the natural gas marketing activities of RNG, which accounted
for $6.9 million of the increase. Increased natural gas production was offset
in part by lower average sales prices from the Company's producing properties.
Well operations and pipeline income for the six months ended June 30, 1997
were $2.2 million compared to $1.8 million for the six months ended June 30,
1996, an increase of approximately $400,000, or 22.2%. Such increase resulted
from an increase in the number of wells operated by the Company. Other income
for the six months ended June 30, 1997 was $452,000 compared to $231,000 for
the six months ended June 30, 1996, an increase of approximately $221,000, or
95.7%. Such increase resulted from interest earned on higher average cash
balances together with a gain on the sale of equipment.
 
  Costs and expenses. Costs and expenses for the six months ended June 30,
1997 were $33.0 million compared to $19.3 million for the six months ended
June 30, 1996, an increase of approximately $13.7 million, or 71.0%. Oil and
gas well drilling operations costs for the six months ended June 30, 1997 were
$15.8 million compared to $8.8 million for the six months ended June 30, 1996,
an increase of approximately $7.0 million, or
 
                                      15
<PAGE>
 
79.5%. Such increase resulted from additional expenses resulting from
increased drilling activity. Oil and gas purchases and production costs for
the six months ended June 30, 1997 were $14.7 million compared to $8.1 million
for the six months ended June 30, 1996, an increase of approximately $6.6
million, or 81.5%. Such increase was due primarily to purchases of natural gas
for resale by RNG. General and administrative expenses for the six months
ended June 30, 1997 remained relatively constant at $1.1 million.
 
  Net income. Net income for the six months ended June 30, 1997 was $3.9
million compared to net income of $1.9 million for the six months ended June
30, 1996, an increase of approximately $2.0 million, or 105.3%.
 
 YEAR ENDED DECEMBER 31, 1996 COMPARED WITH DECEMBER 31, 1995
 
  Revenues. Total revenues for the year ended December 31, 1996 were $49.6
million compared to $22.3 million for the year ended December 31, 1995, an
increase of approximately $27.3 million, or 122.4%. Drilling revenues for the
year ended December 31, 1996 were $18.7 million compared to $13.9 million for
the year ended December 31, 1995, an increase of approximately $4.8 million,
or 34.5%. Such increase was due to an increase in drilling and completion
activities, which was a direct result of an increase in drilling funds from
the Company's public drilling programs. Oil and gas sales for the year ended
December 31, 1996 were $26.1 million compared to $4.2 million for the year
ended December 31, 1995, an increase of approximately $21.9 million, or
521.4%. Such increase was due primarily to the natural gas marketing
activities of RNG, along with increased production and higher average sales
prices from the Company's producing properties and increased natural gas
purchased for resale. Well operations and pipeline income for the year ended
December 31, 1996 were $3.9 million compared to $3.7 million for the year
ended December 31, 1995, an increase of approximately $200,000, or 5.4%. Such
increase resulted from an increase in the number of wells operated by the
Company. Other income for the year ended December 31, 1996 was $936,000
compared to $504,000 for the year ended December 31, 1995, an increase of
approximately 432,000, or 85.7%. Such increase was due to management fees
earned on higher volumes of drilling partnerships.
 
  Costs and expenses. Costs and expenses for the year ended December 31, 1996
were $45.0 million compared to $20.5 million for the year ended December 31,
1995, an increase of approximately $24.5 million, or 119.5%. Oil and gas well
drilling operations costs for the year ended December 31, 1996 were $15.8
million compared to $11.9 million for the year ended December 31, 1995, an
increase of approximately $3.9 million, or 32.8%. Such increase resulted from
additional expenses resulting from increased drilling activity. Oil and gas
purchases and production costs for the year ended December 31, 1996 were $24.2
million compared to $4.1 million for the year ended December 31, 1995, an
increase of approximately $20.1 million, or 490.2%. Such increase was due
primarily to natural gas purchases by RNG for resale and to a lesser extent
higher volumes of natural gas purchased for resale at higher average prices.
General and administrative expenses for the year ended December 31, 1996 were
$2.3 million compared to $2.0 million for the year ended December 31, 1995, an
increase of approximately $300,000, or 15.0%. Such increase was due to overall
administrative costs and increased personnel costs and generally higher
administrative overhead.
 
  Net income. Net income for the year ended December 31, 1996 was $3.5 million
compared to $1.5 million for the year ended December 31, 1995, an increase of
approximately $2.0 million, or 133.3%.
 
 YEAR ENDED DECEMBER 31, 1995 COMPARED WITH DECEMBER 31, 1994
 
  Revenues. Total revenues for the year ended December 31, 1995 were $22.3
million compared with $23.8 million for the year ended December 31, 1994, a
decrease of approximately $1.5 million, or 6.3%. Drilling revenues for the
year ended December 31, 1995 were $13.9 million compared with $15.2 million
for the year ended December 31, 1994, a decrease of approximately $1.3
million, or 8.6%. This decrease was due to a slight decrease in drilling and
completion activities in 1995 compared to 1994. Oil and gas sales for the year
ended December 31, 1995 were $4.2 million compared to $4.4 million for the
year ended December 31, 1994, a decrease of approximately $200,000, or 4.5%.
This decrease was the result of lower average natural gas sales prices offset
by increased volumes of natural gas sold. Well operations and pipeline income
for the year ended December 31, 1995 remained relatively constant at $3.7
million. Other income for the year ended December 31, 1995 was $504,000
compared to $524,000 for the year ended December 31, 1994, a decrease of
approximately $20,000, or 3.8%.
 
                                      16
<PAGE>
 
  Costs and expenses. Costs and expenses for the year ended December 31, 1995
were $20.5 million, compared to $22.7 million for the year ended December 31,
1994, a decrease of approximately $2.2 million, or 9.7%. Oil and gas well
drilling operations costs for the year ended December 31, 1995 were $11.9
million compared to $14.3 million for the year ended December 31, 1994, a
decrease of approximately $2.4 million, or 16.8%. Such decrease resulted from
decreased drilling and completion activities. Oil and gas purchases and
production costs for the year ended December 31, 1995 were $4.1 million
compared to $4.0 million for the year ended December 31, 1994, an increase of
approximately $100,000, or 2.5%. General and administrative expenses for the
year ended December 31, 1995 were $2.0 million, compared to $2.2 million for
the year ended December 31, 1994, a decrease of approximately $200,000, or
9.1%. This decrease was a result of a general Company-wide cost-cutting
program.
 
  Net income. Net income for the year ended December 31, 1995 was $1.5 million
compared to $922,000 for the year ended 1994, an increase of approximately
$578,000, or 62.7%.
 
QUARTERLY RESULTS OF OPERATIONS
 
  The following table presents certain condensed unaudited quarterly financial
information for each of the ten most recent quarters in the period ended June
30, 1997. This information is derived from unaudited consolidated financial
statements of the Company that include, in the opinion of the Company, all
adjustments (consisting only of normal recurring adjustments) necessary for a
fair presentation of results of operations for such periods, when read in
conjunction with the audited Consolidated Financial Statements of the Company
and notes thereto appearing elsewhere in this Prospectus. All information is
in thousands, except per share data.
 
<TABLE>   
<CAPTION>
                                                                QUARTER ENDED
                         -------------------------------------------------------------------------------------------
                         MAR. 31, JUNE 30, SEPT. 30, DEC. 31, MAR. 31, JUNE 30, SEPT. 30, DEC. 31, MAR. 31, JUNE 30,
                           1995     1995     1995      1995     1996     1996     1996      1996     1997     1997
                         -------- -------- --------- -------- -------- -------- --------- -------- -------- --------
<S>                      <C>      <C>      <C>       <C>      <C>      <C>      <C>       <C>      <C>      <C>
REVENUES:
 Oil and gas well
  drilling operations..   $7,294   $2,379   $1,857    $2,411   $7,987   $2,746   $2,991    $4,974  $13,261   $6,016
 Oil and gas sales.....    1,162    1,018      800     1,171    2,467    6,497    7,168     9,919    8,767    7,581
 Well operations and
  pipeline income......    1,002      970      869       909      902      946    1,018     1,063    1,131    1,118
 Other income..........       79       66       56       303       85      145      140       566      249      203
                          ------   ------   ------    ------   ------   ------   ------    ------  -------   ------
 Total revenues........    9,537    4,433    3,582     4,794   11,441   10,334   11,317    16,522   23,408   14,918
                          ------   ------   ------    ------   ------   ------   ------    ------  -------   ------
COSTS AND EXPENSES:
 Costs of oil and gas
  well drilling
  operations...........    6,136    1,990    1,355     2,462    6,502    2,268    2,455     4,555   11,319    4,439
 Oil and gas purchases
  and production costs.    1,310    1,096      818       915    2,035    6,049    6,958     9,148    7,561    7,155
 General and
  administrative
  expenses.............      450      521      601       389      542      571      651       541      499      593
 Depreciation,
  depletion, and
  amortization.........      588      536      591       436      666      542      583       519      610      611
 Interest..............       84       76       71        89       72       67      107       134      103      102
                          ------   ------   ------    ------   ------   ------   ------    ------  -------   ------
 Total costs and
  expenses.............    8,568    4,219    3,436     4,291    9,817    9,497   10,754    14,897   20,092   12,900
                          ------   ------   ------    ------   ------   ------   ------    ------  -------   ------
Income before income
 taxes.................      969      214      146       503    1,624      837      563     1,625    3,316    2,018
Income taxes...........      240       53       36        21      344      177      153       426      812      612
                          ------   ------   ------    ------   ------   ------   ------    ------  -------   ------
Net income.............   $  729   $  161   $  110    $  482   $1,280   $  660   $  410    $1,199  $ 2,504   $1,406
                          ======   ======   ======    ======   ======   ======   ======    ======  =======   ======
Earnings per common and
 common equivalent
 share.................   $ 0.06   $ 0.02   $ 0.01    $ 0.04   $ 0.11   $ 0.06   $ 0.04    $ 0.10  $  0.21   $ 0.12
                          ======   ======   ======    ======   ======   ======   ======    ======  =======   ======
</TABLE>    
 
  The Company historically has received the majority of its total annual
revenues during the first and fourth quarters of each year. Such pattern is
attributable to (i) the seasonal demand for natural gas, which is typically
greatest during the winter months of the first and fourth quarters and (ii)
the generation of funds from the drilling
 
                                      17
<PAGE>
 
activities of the Company-sponsored limited partnerships. The Company
recognizes revenues from drilling operations on the percentage of completion
method as wells are drilled, rather than when funds are received. As the last
partnership to close in a given year is typically the largest partnership of
the year, the Company receives substantial funds during the fourth quarter
from its year-end drilling partnerships and recognizes revenues from such
receipt in the subsequent first quarter as the wells for such drilling
partnership are drilled. Therefore, the Company's quarterly earnings may vary
considerably due to the impact of seasonality and the timing of receipt of
investment funds.
 
LIQUIDITY AND CAPITAL RESOURCES
 
  The Company funds its operations through a combination of cash flow from
operations, capital raised through drilling partnerships, and use of the
Company's credit facility. Operational cash flow is generated by sales of
natural gas from the Company's well interests, well drilling and operating
activities for the Company's investor partners, natural gas gathering and
transportation, and natural gas marketing. Cash payments from Company-
sponsored partnerships are used to drill and complete wells for the
partnerships, with operating cash flow accruing to the Company to the extent
payments exceed drilling costs. The Company utilizes its revolving credit
arrangement to meet the cash flow requirements of its operating and investment
activities.
 
  Sales volumes of natural gas have continued to increase while natural gas
prices fluctuate monthly. The Company's natural gas sales prices are subject
to increase and decrease based on various market-sensitive indices. A major
factor in the variability of these indices is the seasonal variation of demand
for natural gas, which typically peaks during the winter months. The volumes
of natural gas sales are expected to continue to increase as a result of
continued drilling activities. The Company utilizes commodity-based derivative
instruments (natural gas futures contracts traded on the NYMEX) as hedges to
manage a portion of its exposure to this price volatility. The futures
contracts hedge committed and anticipated natural gas purchases and sales,
generally forecasted to occur within a three- to twelve-month period. As of
June 30, 1997, the Company had futures contracts for the sale of $2.4 million
of natural gas. While these contracts have nominal carrying value, their fair
value, represented by the estimated amount that would be received upon
termination of the contracts, based on market quotes, was a net value of
$51,100 at June 30, 1997. The Company is required to maintain margin deposits
($300,000 as of June 30, 1997) with brokers for outstanding futures contracts.
 
  On January 31, 1996, the Company repurchased 1,200,000 shares of its Common
Stock, for $0.83 per share, from PNC Bank, N.A. This repurchase was pursuant
to an option agreement, which was obtained in connection with a debt
restructuring in 1990. These shares, which represented approximately 11% of
the shares of the Company's Common Stock then outstanding, were retired by the
Company.
 
  On March 13, 1997, the Company amended and restated its bank credit
agreement with First National Bank of Chicago, which provides a borrowing base
of $10.0 million, subject to adequate oil and natural gas reserves. At the
request of the Company, the bank, at its sole discretion, may increase the
borrowing base to $20.0 million. As of September 15, 1997, the balance
available under the line was $6.5 million. Interest accrues at prime, with
LIBOR (London Interbank Market Rate) alternatives available at the discretion
of the Company. No principal payments are required until the credit agreement
expires on December 31, 1999.
 
  The Company closed its first public drilling partnership of 1997 in the
second quarter and drilled the wells funded thereby in the second and third
quarters of 1997. The Company closed its second public drilling partnership of
1997 in September 1997 and plans to drill the wells funded thereby during the
remainder of 1997. The Company's first and second drilling programs of 1997
closed with funding approximately 62% and 152%, respectively, higher than the
first and second drilling programs of 1996. The Company expects to close two
additional partnerships in 1997. Typically, the last partnership closed during
each year is the largest partnership of the year; the last partnership of 1996
raised $15.3 million. The Company generally invests, as its equity
contribution to each drilling partnership, an additional sum approximating 20%
of the aggregate subscriptions received for that particular drilling
partnership. As a result, the Company is subject to substantial cash
commitments at the closing of each drilling partnership. The funds received
from these programs are restricted to use in future drilling operations. No
assurance can be made that the Company will continue to receive this level of
funding from these or future programs.
 
 
                                      18
<PAGE>
 
  In September 1997, the Company consummated a private offering of Common
Stock (the "Private Placement"), pursuant to which it issued and sold 500,000
shares at a price of $4.00 per share, and issued warrants for 125,000 shares
of Common Stock exercisable during a two-year period ending September 15, 1999
at an exercise price of $6.00 per share, resulting in proceeds to the Company
of $2.0 million. No registration rights were granted in connection with the
securities issued in the Private Placement.
 
  In September 1997, the Company was notified that it had submitted a
successful bid for the acquisition of Columbia Gas Transmission Company's
Rimersburg natural gas gathering system, located in northern Pennsylvania. If
consummated, this transaction would occur in early- to mid-1998 and would add
to the Company's existing natural gas gathering system 207 miles of pipeline
located in an area contiguous to the Company's Pennsylvania drilling
operations, at a cost to the Company of $1.4 million.
 
  The Company continues to pursue capital investment opportunities in
producing natural gas properties as well as its plan to participate in its
sponsored natural gas drilling partnerships, while pursuing opportunities for
operating improvements and cost efficiencies. Management believes that the
Company has adequate capital to meet its operating requirements.
 
NEW ACCOUNTING STANDARDS
 
  In February 1997, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards ("SFAS") No. 128, Earnings per Share. SFAS
No. 128 supersedes APB Opinion No. 15, Earnings per Share ("Opinion No. 15"),
and requires the calculation and dual presentation of basic and diluted
earnings per share ("EPS"), replacing the measures of primary and fully-
diluted EPS as reported under Opinion No. 15. SFAS No. 128 is effective for
financial statements issued for periods ending after December 15, 1997;
earlier application is not permitted. Accordingly, EPS for the three- and six-
month periods ended June 30, 1997 and 1996 presented on the accompanying
statements of income are calculated under the guidance of Opinion 15.
 
  Under SFAS No 128, basic EPS would have been $0.37 and $0.19 and diluted EPS
would have been $0.33 and $0.17 per share for the six months ended June 30,
1997 and 1996, respectively. Also under SFAS No. 128, basic EPS would have
been $0.13 and $0.06 and diluted EPS would have been $0.12 and $0.06 per share
for the quarters ended June 30, 1997 and 1996, respectively.
 
  In June 1997, SFAS No. 130, "Reporting Comprehensive Income," and SFAS No.
131, "Disclosure about Segments of an Enterprise and Related Information,"
were issued. The Company will adopt these standards in 1998.
 
                                      19
<PAGE>
 
                                   BUSINESS
 
INTRODUCTION
 
  The Company is a regional independent energy company engaged primarily in
the development, production and marketing of natural gas. The Company has
grown primarily through increased drilling and development activities, the
acquisition and subsequent development of natural gas producing wells and the
expansion of its natural gas marketing activities. As of June 30, 1997, the
Company operated approximately 1,170 natural gas wells located in the
Appalachian Basin and in the Michigan Basin, and had net proved reserves of
47.3 Bcf of natural gas. The Company's wells currently produce an aggregate of
approximately 22,000 Mcf of natural gas per day, of which the Company's share
is approximately 5,100 Mcf.
 
  The majority of the wells operated by the Company are located in the West
Virginia and Pennsylvania portions of the Appalachian Basin. The Appalachian
Basin is characterized by shallow developmental wells, which generally have
provided highly predictable drilling success rates. In addition, because wells
drilled in the Appalachian Basin are closer to the large demand centers for
natural gas in the northeastern United States, natural gas from this area
typically has commanded a price premium relative to natural gas produced in
areas such as the Gulf Coast and Mid-Continent regions of the United States.
In 1997, the Company commenced drilling in the Antrim shale formation of the
Michigan Basin, and, through August 31, 1997, had drilled 24 wells in this
location. In addition to its drilling activities, from time to time the
Company purchases natural gas producing properties. For example, in July 1996,
the Company purchased 188 wells located in West Virginia from Angerman
Associates, Inc.
 
  In April 1996, the Company acquired RNG, an Appalachian Basin natural gas
marketing company, which aggregates and resells natural gas developed by the
Company and other producers. This acquisition allowed the Company to diversify
its operations beyond natural gas drilling and production. RNG has established
relationships with many of the small natural gas producers in the Appalachian
Basin and has significant expertise in the natural gas end-user market. In
addition, RNG has extensive experience in the use of hedging strategies, which
the Company utilizes to reduce the financial impact on the Company of changes
in the price of natural gas.
 
  Since 1984, the Company has sponsored limited partnerships formed to engage
in drilling operations. The Company typically retains a 20% ownership interest
in these drilling limited partnerships. In 1996, the Company raised $24.6
million through four public drilling partnerships, making it the sponsor of
the largest public oil and gas partnership program in the United States in
that year. The drilling programs have provided the Company with access to the
capital resources necessary to expand its drilling opportunities and to
maintain the infrastructure necessary to support such activities.
 
INDUSTRY OVERVIEW
 
  Natural gas is the second largest energy source in the United States, after
liquid petroleum. The 22.5 Tcf of natural gas consumed in 1996 represented
approximately 24% of the total energy used in the United States. Natural gas
is consumed in the United States as follows: 46% by industrial end-users as
feedstock for products such as plastic and fertilizer or as the energy source
for producing products such as glass; 24% and 15% by residential and
commercial end-users, respectively, for uses including heating, cooling and
cooking; 12.5% by utilities for the generation of electricity; and the
remainder for transportation purposes.
 
  The Company believes that the market for natural gas will grow in the
future. The demand for natural gas has increased due to four main factors:
 
  . Efficiency. Relative to other energy sources, natural gas losses during
    transportation from source to destination are slight, averaging only
    about 9% of the natural gas energy.
 
  . Environmentally favorable. Natural gas is the cleanest and most
    environmentally safe of the fossil fuels.
 
  . Safety. The delivery of natural gas is among the safest means of
    distributing energy to customers, as the natural gas transmission system
    is fixed and is located underground.
 
                                      20
<PAGE>
 
  . Price. The deregulation of the natural gas industry and a favorable
    regulatory environment have resulted in end-users' ability to purchase
    natural gas on a competitive basis from a greater variety of sources.
 
The Company believes that the foregoing factors, together with the increased
availability of natural gas as a form of energy for residential, commercial
and industrial uses, should increase the demand for natural gas as well as
create new markets for natural gas.
   
  As local supplies of natural gas are inadequate to meet demand, the West
Coast and the Northeast import natural gas from producing areas via interstate
natural gas pipelines. The cost of transporting natural gas from the major
producing areas to markets creates a price advantage for production located
closer to the consuming region. Appalachian Basin natural gas production
enjoys two advantageous factors affecting price. First, the Appalachian Basin
is characterized by shallow development gas wells that generally have provided
highly predictable drilling success rates of 90% to 92%, which permits a more
basic approach to drilling based on the geology unique to the area. Also, the
natural gas industry in the Appalachian Basin benefits from its proximity to
the northeastern United States. Appalachian Basin producers have recently
experienced price differentials averaging $0.15 per Mcf to $0.30 per Mcf on an
annual average as compared to production in the Gulf Coast and Mid-Continent
regions of the United States. From October 1996 to September 1997, Appalachian
natural gas on the CNG system received a premium ranging from $0.20 per Mcf to
$0.55 per Mcf and averaged almost $0.33 per Mcf for that time period.     
 
  In the early 1990's, natural gas companies began exploiting the northern
portion of Michigan's lower peninsula, when certain favorable tax credits for
natural gas development were enacted. The result of such development was new
advances in drilling technology, which made natural gas drilling in this area
profitable even after the expiration of these tax credits. In Michigan's lower
peninsula, there is an abundance of shallow Antrim gas shale, which should
provide significant reserves per well drilled. Additionally, this area is
close to certain end-user markets, which should provide favorable premiums.
With a current productive area of nearly 2.5 million acres, Michigan is one of
the most active areas for natural gas drilling in the United States.
 
BUSINESS STRATEGY
 
  The Company's objective is to expand its natural gas reserves, production
and revenues through a strategy that includes the following key elements:
 
  Expand drilling operations. The Company has had one of the most active
drilling programs in the Northeast in the 1990's and will seek to continue to
build on the experience developed in drilling more than 450 shallow natural
gas wells since 1992. In the first six months of 1997, the Company drilled 106
wells, compared to 97 for the entire year of 1996. The Company believes that
it will be able to drill a substantial number of new wells on its current
undeveloped leased properties. As of June 30, 1997, the Company had 22,075 net
undeveloped acres in the Michigan Basin and 37,800 net undeveloped acres in
the Appalachian Basin. As drilling activity increases, the Company benefits as
its fixed costs may be spread over a larger number of wells.
 
  Acquire producing properties. The Company's acquisition efforts are focused
on properties that fit well within existing operations or that help to build
critical mass in areas where the Company is establishing new operations.
Toward that end, in 1996, in order to further penetrate its existing
development area, the Company purchased 188 producing wells in the Appalachian
Basin. Acquisitions will likely offer economies in management and
administration, and therefore the Company believes that it will be able to
acquire more producing wells without incurring substantial increases in its
costs of operations.
 
  Pursue geographic expansion. The Company has a proven ability to drill and
operate shallow natural gas wells successfully. There are a number of areas
outside the Appalachian Basin where drilling and operating characteristics are
similar to those in Appalachia. For example, in 1996, the Company expanded
into the Michigan Basin, which permits the Company to leverage its expertise
developed in the Appalachian Basin, because of the similarities in methods of
drilling, depth, equipment and operations. Moreover, expected reserves and
production levels of two to three times that of Appalachian levels for a
similar investment should more than offset higher expected operating costs.
The Company will continue to evaluate opportunities to expand geographically
on an ongoing basis.
 
                                      21
<PAGE>
 
  Reduce risks inherent in natural gas development and marketing. An integral
part of the Company's strategy has been and will continue to be to concentrate
on drilling development, rather than exploratory, wells, shallow wells and
geographical diversification to reduce risk levels associated with natural gas
and oil production. Development drilling is less risky than exploratory
drilling and is likely to generate cash returns more quickly. The focus on
shallow wells builds on the Company's knowledge and experience, and also
provides greater investment diversification than an equal investment in a
smaller number of deeper and/or more expensive wells. Geographical
diversification can help to offset possible weakness in the natural gas market
or disappointing drilling results in one area. The Company believes that, as
natural gas markets are deregulated, successful natural gas marketing is
essential to profitable operations. To further this goal, in 1996, the Company
acquired RNG, an experienced Appalachian Basin natural gas marketer. The
Company intends to continue to expand its market capacity to keep pace with
the changing natural gas industry.
 
  Expand strategic relationships. By managing drilling programs for itself and
other investors, the Company is able to share administrative, overhead and
other costs with its partners, reducing costs for both. The Company also is
able to maintain a larger and more capable geology and engineering staff than
would be possible without partners. Other benefits from these associations
include greater buying power for drilling services and materials, larger
amounts of natural gas available to market, profits to the Company from
drilling and operating wells for partners, and greater awareness of the
Company in the investment community.
 
EXPLORATION AND DEVELOPMENT ACTIVITIES
 
  The Company's development activities focus on the identification and
drilling of new productive wells and the acquisition of existing producing
wells from other producers.
 
 PROSPECT GENERATION
 
  The Company's staff of professional geologists is responsible for
identifying areas with potential for economic production of natural gas. The
Company's team of professional geologists has decades of experience drilling
successful, economically feasible natural gas wells. The geological team
utilizes results from logs and other tools to evaluate existing wells and to
predict the location of attractive new gas reserves. To further this process,
the Company has collected and continues to collect logs, core data, production
information and other raw data available from state and private agencies,
other companies and individuals actively drilling in the regions being
evaluated. From this information the geologists develop models of the
subsurface structures and stratigraphy that are used to predict areas with
above-average prospects for economic development.
 
  On the basis of these models, the geologists instruct the Company's land
department to obtain available natural gas leaseholds in these prospective
areas. These leases are then obtained, if possible, by the Company's land
department or contract landmen under the direction of the Company's land
manager. In most cases, the Company pays a lease bonus and annual rental
payments, converting, upon initiation of production, to a 12.5% royalty on
gross production revenue in return for obtaining the leases. In some instances
of particularly attractive properties, additional overriding royalty payments
may be made to third parties or royalty owners. As of June 30, 1997, the
Company had a total leasehold inventory of approximately 129,835 gross acres
and 128,175 net acres. See "-- Properties--Natural Gas Leases."
 
 DRILLING ACTIVITIES
 
  When prospects have been identified and leased, the Company develops these
properties by drilling wells. In 1996, the Company drilled a total of 97
wells, of which five were dry holes. In 1997, through June 30, the Company
drilled a total of 106 wells, of which six were dry holes. Typically, the
Company will act as driller-operator for these prospects, entering into
contracts with partnerships, including Company-sponsored partnerships, and
other entities that are interested in exploration or development of the
prospects. The Company generally retains an interest in each well it drills.
See "--Financing of Drilling Activities."
 
  Much of the work associated with drilling, completing and connecting wells,
including drilling, fracturing, logging and pipeline construction, is
performed by subcontractors specializing in those operations, as is common
 
                                      22
<PAGE>
 
in the industry. A large part of the material and services used by the Company
in the development process is acquired through competitive bidding by approved
vendors. The Company also directly negotiates rates and costs for services and
supplies when conditions indicate that such an approach is warranted. As the
prices paid to the Company by its investor partners for the Company's services
are frequently fixed before the wells are drilled or are determined solely on
the well depth, the Company is subject to the risk that prices of goods or
services used in the development process could increase, rendering its
contracts with its investor partners less profitable or unprofitable. In
addition, problems encountered in the process can substantially increase
development costs, sometimes without recourse for the Company to recover its
costs from its partners. To minimize these risks, the Company seeks to lock in
its development costs in advance of drilling and, when possible, at the time
of negotiation and execution of its investor partnership agreements.
 
 ACQUISITIONS OF PRODUCING PROPERTIES
 
  In addition to drilling new wells, the Company continues to pursue
opportunities to purchase existing producing wells from other producers and
greater ownership interests in the wells it operates. Generally, outside
interests purchased include a majority interest in the wells and well
operations.
 
  In 1994, the Company purchased approximately 53 wells from Chesterfield
Energy Corporation. The wells, located in Boone County, West Virginia added
more than two Bcf of proved producing reserves. In 1996, the Company purchased
approximately 188 producing wells from Angerman Associates, Inc. The wells,
located primarily in Gilmer County, West Virginia, added more than four Bcf of
proved producing reserves at December 31, 1996, in addition to several proved
undeveloped locations.
 
 WELL OPERATIONS AND PRODUCTION
 
  The Company currently operates approximately 1,170 natural gas wells in the
Appalachian Basin and 24 wells in the Michigan Basin. The Company's ownership
interest in these wells ranges from 0% to 100%, and, on average, the Company
has an approximate 40% ownership interest in the wells it operates. Currently
these wells produce an aggregate of about 22,000 Mcf of natural gas per day,
including the Company's share of 5,100 Mcf per day.
 
  The Company is paid a monthly operating charge for each well it operates.
The rate is competitive with rates charged by other operators in the area. The
charge covers monthly operating and accounting costs, insurance and other
recurring costs. The Company may also receive additional compensation for
special non-recurring activities, such as reworks and recompletions.
 
 TRANSPORTATION
 
  Natural gas wells are connected by pipelines to natural gas markets. Over
the years, the Company has developed extensive gathering systems in its areas
of operations. The Company also continues to construct new trunklines as
necessary to provide for the marketing of natural gas being developed from new
areas and to enhance or maintain its existing systems. The Company is paid a
transportation fee for natural gas that is moved by other producers through
these pipeline systems. In many cases the Company has been able to receive
higher natural gas prices as a result of its ability to move natural gas to
more attractive markets through this pipeline system, to the benefit of both
the Company and its investor partners.
 
  The Company has an Ohio subsidiary, Paramount Natural Gas Company ("PNG"),
which commenced operations in October 1992 as a regulated Ohio distribution
utility. As a utility, PNG has been able to connect new customers, and the
Company is able to compete for the natural gas markets of these customers by
transporting natural gas through the PNG system. The majority of PNG's
throughput is attributable to natural gas transported for the Company and
industrial customers for a transportation tariff, with the balance being sales
to residential, commercial and industrial customers.
 
  In September 1997, the Company was notified that it had submitted a
successful bid for the acquisition of Columbia Gas Transmission Company's
Rimersburg natural gas gathering system, located in northern Pennsylvania. If
consummated, this transaction would occur in early- to mid-1998 and would add
to the
 
                                      23
<PAGE>
 
Company's existing natural gas gathering system 207 miles of pipeline located
in an area contiguous to the Company's Pennsylvania drilling operations, at a
cost to the Company of $1.4 million. The Company believes that the advantage
of such acquisition would be to improve its natural gas gathering network at
low cost to the Company, as current operating personnel would be used to
manage the additional pipeline. The Company has conditioned the consummation
of the transaction on numerous factors, including an environmental audit,
resolution of any environmental problems revealed in such audit, transfer of
natural gas gathering agreements from Columbia Gas Transmission Company to the
Company and FERC approval. No assurance can be given that the Company will
consummate this transaction.
 
PROPERTIES
 
 DRILLING ACTIVITY
 
  The following table summarizes the Company's drilling activity for the years
ended December 31, 1992, 1993, 1994, 1995 and 1996 and the six months ended
June 30, 1997. There is no correlation between the number of productive wells
completed during any period and the aggregate reserves attributable to those
wells. The Company's exploratory wells drilled in the past five years consist
of three dry holes (0.75 net) drilled in 1993.
 
<TABLE>
<CAPTION>
                                                           DEVELOPMENT WELLS
                              1992          1993          1994          1995          1996          1997*
                          ------------- ------------- ------------- ------------- ------------- --------------
                          DRILLED  NET  DRILLED  NET  DRILLED  NET  DRILLED  NET  DRILLED  NET  DRILLED   NET
                          ------- ----- ------- ----- ------- ----- ------- ----- ------- ----- -------- -----
 <S>                      <C>     <C>   <C>     <C>   <C>     <C>   <C>     <C>   <C>     <C>   <C>      <C>
 Total wells.............    80   15.86    56   10.00    75   13.76    72   13.40    97   17.44   106    26.42
 Productive natural gas
  wells..................    73   14.47    49    8.75    71   13.00    64   11.80    92   16.46   100    24.80
 Dry holes...............     7    1.39     7    1.25     4    0.76     8    1.60     5    0.98     6     1.62
</TABLE>
- --------
*Through June 30, 1997
 
 SUMMARY OF PRODUCTIVE WELLS
 
  The table below shows the number of the Company's productive gross and net
wells at June 30, 1997.
 
<TABLE>
<CAPTION>
                                                                WELLS
                                                     ---------------------------
                                                          GAS           OIL
                                                     ------------- -------------
      LOCATION                                       GROSS   NET   GROSS   NET
      --------                                       ------ ------ ------ ------
      <S>                                            <C>    <C>    <C>    <C>
      Michigan......................................     23   9.89     --     --
      Ohio..........................................     16   5.50      9   2.03
      Pennsylvania..................................    163  35.63     --     --
      Tennessee.....................................      1   0.57     44  16.73
      West Virginia.................................    967 421.90     10   4.46
                                                     ------ ------ ------ ------
        Total.......................................  1,170 473.49     63  23.22
                                                     ====== ====== ====== ======
</TABLE>
 
 RESERVES
   
  All of the Company's oil and natural gas reserves are located in the United
States. The Company's approximate net proved reserves were estimated, by the
Company's petroleum engineers for 1994 and 1995 and by Wright & Company, Inc.
independent petroleum engineers ("Wright & Company"), for 1996 and 1997, to be
47,333,000 Mcf of natural gas and 41,000 Bbls of oil at June 30, 1997;
43,312,000 Mcf of natural gas and 81,000 Bbls of oil at December 31, 1996;
33,829,000 Mcf of natural gas and 140,000 Bbls of oil at December 31, 1995;
and 32,225,000 Mcf of natural gas and 79,000 Bbls of oil at December 31, 1994.
    
                                      24
<PAGE>
 
   
  The Company's approximate net proved developed reserves were estimated, by
the Company for 1994 and 1995 and by Wright & Company for 1996 and 1997, to be
38,240,000 Mcf of natural gas and 41,000 Bbls of oil at June 30, 1997;
35,516,000 Mcf of natural gas and 81,000 Bbls of oil at December 31, 1996;
29,326,000 Mcf of natural gas and 140,000 Bbls of oil at December 31, 1995;
and 27,746,000 Mcf of natural gas and 79,000 Bbls of oil at December 31, 1994.
    
  No major discovery or other favorable or adverse event that would cause a
significant change in estimated reserves is believed by the Company to have
occurred since June 30, 1997. Reserves cannot be measured exactly, as reserve
estimates involve subjective judgment. The estimates must be reviewed
periodically and adjusted to reflect additional information gained from
reservoir performance, new geological and geophysical data and economic
changes.
   
  The standardized measure of discounted future net cash flows attributable to
the Company's proved oil and gas reserves, giving effect to future estimated
income tax expenses, was estimated, by the Company in 1994 and 1995 and by
Wright & Company in 1996 and 1997, to be $16.9 million as of June 30, 1997,
$34.3 million as of December 31, 1996, $21.1 million as of December 31, 1995,
and $14.4 million as of December 31, 1994. These amounts are based on period-
end prices at the respective dates. Since December 31, 1996, prices have
decreased due to seasonal demand. The values expressed are estimates only, and
may not reflect realizable values or fair market values of the natural gas and
oil ultimately extracted and recovered. The standardized measure of discounted
future net cash flows may not accurately reflect proceeds of production to be
received in the future from the sale of natural gas and oil currently owned
and does not necessarily reflect the actual costs that would be incurred to
acquire equivalent natural gas and oil reserves.     
 
 NET PROVED NATURAL GAS AND OIL RESERVES
 
  The proved reserves of natural gas and oil of the Company as estimated by
Wright & Company at June 30, 1997 are set forth below. These reserves have
been prepared in compliance with the rules of the Securities and Exchange
Commission (the "SEC") based on period-end prices. An analysis of the change
in estimated quantities of natural gas and oil reserves from January 1, 1997
to June 30, 1997, all of which are located within the United States, is shown
below:
 
<TABLE>   
<CAPTION>
                                                               NATURAL GAS (MCF)
                                                               -----------------
<S>                                                            <C>
Proved developed and undeveloped reserves:
  Beginning of year (January 1, 1997).........................    43,312,000
  Revisions of previous estimates.............................    (3,299,000)
                                                                  ----------
  Beginning of year as revised................................    40,013,000
  New discoveries and extensions..............................     8,198,000
  Dispositions................................................            --
  Acquisitions................................................            --
  Production..................................................      (878,000)
                                                                  ----------
  End of period (June 30, 1997)...............................    47,333,000
                                                                  ==========
Proved developed reserves:
  Beginning of year (January 1, 1997).........................    35,516,000
                                                                  ==========
  End of period (June 30, 1997)...............................    38,240,000
                                                                  ==========
</TABLE>    
 
                                      25
<PAGE>
 
<TABLE>
<CAPTION>
                                                                      OIL (BBLS)
                                                                      ----------
<S>                                                                   <C>
Proved developed and undeveloped reserves:
  Beginning of year (January 1, 1997)................................   81,000
  Revisions of previous estimates....................................  (36,000)
                                                                       -------
  Beginning of year as revised.......................................   45,000
  Dispositions.......................................................       --
  Acquisitions.......................................................       --
  Production.........................................................   (4,000)
                                                                       -------
  End of period (June 30, 1997)......................................   41,000
                                                                       =======
Proved developed reserves:
  Beginning of year (January 1, 1997)................................   81,000
                                                                       =======
  End of period (June 30, 1997)......................................   41,000
                                                                       =======
</TABLE>
 
 STANDARDIZED MEASURE OF DISCOUNTED FUTURE NET CASH FLOWS AND CHANGES THEREIN
 RELATING TO PROVED NATURAL GAS AND OIL RESERVES
 
  Summarized in the following table is information for the Company with
respect to the standardized measure of discounted future net cash flows
relating to proved natural gas and oil reserves. Future cash inflows are
derived by applying current natural gas and oil prices to estimated future
production. Future production, development, site restoration and abandonment
costs are derived based on current costs, assuming continuation of existing
economic conditions. Future income tax expenses are computed by applying the
statutory rate in effect at June 30, 1997 to the future pretax net cash flows,
less the tax basis of the properties, and gives effect to permanent
differences, tax credits and allowances related to the properties.
 
<TABLE>
<CAPTION>
                                                                  JUNE 30, 1997
                                                                  -------------
<S>                                                               <C>
Future estimated cash flows...................................... $114,836,000
Future estimated production and development costs................  (51,448,000)
Future estimated income tax expense..............................  (17,495,000)
                                                                  ------------
Future net cash flows............................................   45,893,000
10% annual discount for estimated timing of cash flows...........  (28,969,000)
                                                                  ------------
Standardized measure of discounted future estimated net cash
 flows........................................................... $ 16,924,000
                                                                  ============
</TABLE>
 
  The following table summarizes the principal sources of change in the
standardized measure of discounted future estimated net cash flows from
January 1, 1997 through June 30, 1997:
 
<TABLE>
<S>                                                                <C>
Sales of oil and natural gas production, net of production costs.  $ (1,736,000)
Net changes in prices and production costs.......................   (66,622,000)
Extensions, discoveries and improved recovery, less related cost.     9,348,000
Acquisitions.....................................................            --
Development costs incurred during the period.....................     1,152,000
Revisions of previous quantity estimates.........................   (10,588,000)
Changes in estimated income taxes................................    16,004,000
Accretion of discount............................................    37,264,000
Other............................................................    (2,160,000)
                                                                   ------------
                                                                   $(17,338,000)
                                                                   ============
</TABLE>
 
  The foregoing data should not be viewed as representing the expected cash
flow from, or current value of, existing proved reserves, as the computations
are based on a large number of estimates and arbitrary assumptions. Reserve
quantities cannot be measured with precision, and their estimation requires
many judgmental determinations and frequent revisions. The required projection
of production and related expenditures over time requires further estimates
with respect to pipeline availability, rates of demand and governmental
control. Actual
 
                                      26
<PAGE>
 
future prices and costs are likely to be substantially different from the
current prices and costs utilized in the computation of reported amounts. Any
analysis or evaluation of the reported amounts should give specific
recognition to the computational methods and the limitations inherent therein.
 
  Substantially all of the Company's natural gas and oil reserves have been
mortgaged or pledged as security for bank loans to the Company. See Note 3 of
Notes to Consolidated Financial Statements.
 
NATURAL GAS LEASES
 
  The following table sets forth, as of June 30, 1997, the acres of developed
and undeveloped natural gas and oil properties in which the Company had an
interest, listed alphabetically by state.
 
<TABLE>
<CAPTION>
                                                       DEVELOPED    UNDEVELOPED
                                                        ACREAGE       ACREAGE
                                                     ------------- -------------
                                                     GROSS   NET   GROSS   NET
                                                     ------ ------ ------ ------
<S>                                                  <C>    <C>    <C>    <C>
Michigan............................................  4,150  4,150 22,075 22,075
Ohio................................................  1,200    800     --     --
Pennsylvania........................................    250    250 13,900 13,160
Tennessee...........................................  3,600  3,600     --     --
West Virginia....................................... 59,900 59,500 24,760 24,640
                                                     ------ ------ ------ ------
  Total............................................. 69,100 68,300 60,735 59,875
                                                     ====== ====== ====== ======
</TABLE>
 
TITLE TO PROPERTIES
 
  The Company believes that it holds good and indefeasible title to its
properties, in accordance with standards generally accepted in the natural gas
industry, subject to such exceptions stated in the opinion of counsel employed
in the various areas in which the Company conducts its exploration activities,
which exceptions, in the Company's judgment, do not detract substantially from
the use of such property. As is customary in the natural gas industry, only a
perfunctory title examination is conducted at the time the properties believed
to be suitable for drilling operations are acquired by the Company. Prior to
the commencement of drilling operations, an extensive title examination is
conducted and curative work is performed with respect to defects which the
Company deems to be significant. A title examination has been performed with
respect to substantially all of the Company's producing properties. No single
property owned by the Company represents a material portion of the Company's
holdings. The Company's properties are subject to customary royalty interests,
liens incident to operating agreements, liens for current taxes and other
burdens which the Company believes do not materially interfere with the use of
or affect the value of such properties.
 
  The properties owned by the Company are subject to royalty, overriding
royalty and other outstanding interests customary in the industry. The
properties are also subject to burdens such as liens incident to operating
agreements, current taxes, development obligations under natural gas and oil
leases, farm-out arrangements and other encumbrances, easements and
restrictions. The Company does not believe that any of these burdens will
materially interfere with the use of the properties.
 
NATURAL GAS SALES
 
  Natural gas is sold by the Company under contracts with terms ranging from
one month to three years. Virtually all of the Company's contract pricing
provisions are tied to a market index, with certain adjustments based on,
among other factors, whether a well delivers to a gathering or transmission
line, quality of natural gas and prevailing supply and demand conditions, so
that the price of the natural gas fluctuates to remain competitive with other
available natural gas supplies. As a result, the Company's revenues from the
sale of natural gas will suffer if market prices decline and benefit if they
increase. The Company believes that the pricing provisions of its natural gas
contracts are customary in the industry.
 
  The Company sells its natural gas to industrial end-users and utilities. One
customer, Hope Gas, Inc., a regulated public utility ("Hope Gas"), accounted
for 30.9% of the Company's revenues from oil and gas sales (13.2% of total
revenues) during the first six months of 1997; 30.7% of the Company's revenues
from oil and
 
                                      27
<PAGE>
 
gas sales (16.1% of total revenues) in 1996; 39.7% of the Company's revenues
from oil and gas sales (7.4% of total revenues) in 1995; and 43.3% of the
Company's revenues from oil and gas sales (7.9% of total revenues) in 1994.
The Company and Hope Gas are parties to a Pipeline Purchase Agreement, which
expires on May 31, 1999, pursuant to which agreement the Company must deliver
to Hope Gas, upon demand, minimum quantities of natural gas (4,500 dth per day
delivered directly to Hope Gas's pipelines and 11,000 dth per day for total
deliveries including both direct and transferred volumes). The Company and
Hope Gas are also parties to a Master Gas Purchase Agreement, which expires on
May 31, 1999, pursuant to which the Company must offer to Hope Gas all volumes
of natural gas available at specific points of delivery, up to the minimum
delivery requirements of the Pipeline Purchase Agreement. No other single
purchaser of the Company's natural gas accounted for 10% or more of the
Company's revenues from oil and natural gas sales during the first six months
of 1997 or in 1996, 1995 or 1994.
 
  At December 31, 1996, natural gas produced by the Company sold at prices per
Mcf ranging from $1.75 to $6.31, depending upon well location, the date of the
sales contract and whether the natural gas was sold in interstate or
intrastate commerce. The weighted net average price of natural gas sold by the
Company during 1996 was $3.04 per Mcf.
 
  In general, the Company, together with its marketing subsidiary, RNG, has
been and expects to continue to be able to produce and sell natural gas from
its wells without curtailment by providing natural gas to purchasers at
competitive prices. Open access transportation on the country's interstate
pipeline system has greatly increased the range of potential markets. Whenever
feasible the Company allows for multiple market possibilities from each of its
gathering systems, while seeking the best available market for its natural gas
at any point in time.
 
NATURAL GAS MARKETING
 
  The Company's natural gas marketing activities involve the aggregation and
reselling of natural gas produced by the Company and others. The Company
believes that, as natural gas markets are deregulated, successful natural gas
marketing is essential to profitable operations. A variety of factors affect
the market for natural gas, including the availability of other domestic
production, natural gas imports, the availability and price of alternative
fuels, the proximity and capacity of natural gas pipelines, general
fluctuations in the supply and demand for natural gas and the effects of state
and federal regulations on natural gas production and sales. The natural gas
industry also competes with other industries in supplying the energy and fuel
requirements of industrial, commercial and individual customers.
 
  For nearly a decade, the United States has experienced an oversupply of
natural gas. This oversupply has been caused primarily by deregulation,
imports and unusually warm weather conditions. Seasonal variations exist to
the extent that the demand for natural gas is somewhat lower during the summer
months than during the winter season.
 
  In 1996, the Company acquired RNG, an Appalachian Basin natural gas
marketing company that specializes in the acquisition and aggregation of
Appalachian Basin gas production. The owner/managers and employees of RNG
joined the Company, and RNG's operations were relocated to the Company's
headquarters. RNG markets natural gas produced by the Company and also
purchases natural gas from other producers and resells to utilities, end users
or other marketers. The employees of RNG have extensive knowledge of the
natural gas market in the Appalachian region. Such knowledge should assist the
Company in maximizing its prices as it markets natural gas from Company-
operated wells. RNG and its management also bring to the Company specific
knowledge and relationships with many producers in the Appalachian Basin
region. Paramount Transmission Corporation ("PTC"), an Ohio subsidiary of the
Company, focuses its efforts on the marketing of Ohio natural gas production
to commercial and industrial end-users.
 
  In West Virginia, Pennsylvania and Michigan, the Company markets natural gas
from its own wells and wells operated for its investment partnerships as a
part of the services provided under the basic monthly operating charge. The
gas is marketed to natural gas utilities, pipelines and industrial and
commercial customers, either directly through the Company's gathering system,
or utilizing transportation services provided by regulated interstate pipeline
companies.
 
                                      28
<PAGE>
 
HEDGING ACTIVITIES
 
  The Company utilizes commodity-based derivative instruments as hedges to
manage a portion of its exposure to price volatility stemming from its natural
gas sales and marketing activities. These instruments consist of NYMEX-traded
natural gas futures contracts. The futures contracts hedge committed and
anticipated natural gas purchases and sales, generally forecasted to occur
within a three- to twelve-month period. Company policy prohibits the use of
natural gas futures for speculative purposes and permits utilization of hedges
only if there is an underlying physical position.
 
  The Company has extensive experience with the use of financial hedges to
reduce the risk and impact of natural gas price changes. These hedges are used
to coordinate fixed and variable priced purchases and sales and to "lock in"
fixed prices from time to time for the Company's share of production. In order
for future contracts to serve as effective hedges, there must be sufficient
correlation to the underlying hedged transaction. While hedging can help
provide price protection if spot prices drop, hedges can also limit upside
potential.
 
  Despite the measures taken by the Company to attempt to control price risk,
the Company remains subject to price fluctuations for natural gas sold in the
spot market. The Company continues to evaluate the potential for reducing
these risks by entering into hedge transactions. In addition, the Company may
also close out any portion of hedges that may exist from time to time. As of
June 30, 1997, there were 111 existing hedge positions. Total natural gas
purchased and sold under hedging arrangements during the year ended December
31, 1996 and the six months ended June 30, 1997 were 1,280,000 MMbtu and
1,620,000 MMbtu, respectively. Under such hedging arrangements, the Company
realized a loss of $146,008 for the year ended December 31, 1996 and a gain of
$73,013 for the six months ended June 30, 1997.
 
FINANCING OF DRILLING ACTIVITIES
 
  The Company conducts development drilling activities for its own account and
for other investors. In 1984, the Company began sponsoring private drilling
limited partnerships, and, in 1989, the Company began to register the
partnership interests offered under public drilling programs with the SEC. The
Company's public partnerships had $24.6 million in subscriptions in 1996.
Funds received pursuant to drilling contracts were $25.0 million in 1996,
$13.6 million in 1995 and $14.9 million in 1994. The Company generally
invests, as its equity contribution to each drilling partnership, an
additional sum approximating 20% of the aggregate subscriptions received for
that particular drilling partnership. As a result, the Company is subject to
substantial cash commitments at the closing of each drilling partnership. The
funds received from these programs are restricted to use in future drilling
operations. While funds were received by the Company pursuant to drilling
contracts in the years indicated, the Company recognizes revenues from
drilling operations on the percentage of completion method as the wells are
drilled, rather than when funds are received. Most of the Company's drilling
and development funds now are received from partnerships in which the Company
serves as managing general partner. However, because wells produce for a
number of years, the Company continues to serve as operator for a large number
of unaffiliated parties. In addition to the partnership structure, the Company
also utilizes joint venture arrangements for financing drilling activities.
 
  The financing process begins when the Company enters into a development
agreement with an investor partner, pursuant to which the Company agrees to
assign its rights in the property to be drilled to the partnership or other
entity. The partnership or other entity thereby becomes owner of a working
interest in the property.
 
  The Company's development contracts with its investor partners have
historically taken many different forms. Generally the agreements can be
classified as on a "footage-based" rate, whereby the Company receives drilling
and completion payments based on the depth of the well; "cost-plus," in which
the Company is reimbursed for its actual cost of drilling plus some additional
amount for overhead and profit; or "turnkey," in which a specified amount is
paid for drilling and another amount for completion. As part of the
compensation for its services, the Company also has received some interest in
the production from the well in the form of an overriding royalty interest,
working interest or other proportionate share of revenue or profits. Often the
Company's development contracts provide for a combination of several of the
foregoing payment options. Basic drilling and completion operations are
performed on a footage-based rate, with leases and gathering pipelines being
contributed at Company cost. The Company also purchases a working interest in
the subject properties.
 
                                      29
<PAGE>
 
  The level of the Company's drilling and development activity is dependent
upon the amount of subscriptions in its public drilling partnerships and
investments from other partnerships or other joint venture partners. The use
of partnerships and similar financing structures enables the Company to
diversify its holdings, thereby reducing the risks to its development
investments. Additionally, the Company benefits through such arrangements by
its receipt of fees for its management services and/or through an increased
share in the revenues produced by the developed properties. The Company
believes that investments in drilling activities, whether through Company-
sponsored partnerships or other sources, are influenced in part by the
favorable treatment that such investments enjoy under the federal income tax
laws. No assurance can be given that the Company will continue to have access
to funds generated through these financing vehicles.
 
OIL PRODUCTION
 
  Before 1980, the Company generated a significant portion of its revenues
from oil production. However, the Company made a strategic decision to
concentrate its development efforts on natural gas production and most of the
Company's current oil production is associated with natural gas production.
The Company does not believe its current production of oil, from wells located
in Tennessee, Ohio and West Virginia, to be material, as its share of oil
production has declined to about 7,000 barrels per year. The Company is
currently able to sell all the oil that it can produce under existing sales
contracts with petroleum refiners and marketers. The Company does not refine
any of its oil production. The Company's crude oil production is sold to
purchasers at or near the Company's wells under short-term purchase contracts
at prices and in accordance with arrangements which are customary in the oil
industry. No single purchaser of the Company's crude oil accounted for 10% or
more of the Company's revenues from oil and gas sales in 1996, 1995 or 1994.
At December 31, 1996, oil produced by the Company sold at prices ranging from
$21.50 to $22.50 per barrel, depending upon the location and quality of oil.
In 1996, the weighted net average price per barrel of oil sold by the Company
was $16.35.
 
  Oil production is subject to many of the same operating hazards and
environmental concerns as natural gas production, but is also subject to the
risk of oil spills. Federal regulations require certain owners or operators of
facilities that store or otherwise handle oil, such as the Company, to procure
and implement spill prevention, control, countermeasures and response plans
relating to the possible discharge of oil into surface waters. The Oil
Pollution Act of 1990 ("OPA") subjects owners of facilities to strict joint
and several lability for all containment and cleanup costs and certain other
damages arising from oil spills. Noncompliance with OPA may result in varying
civil and criminal penalties and liabilities. Operations of the Company are
also subject to the Federal Clean Water Act and analogous state laws relating
to the control of water pollution, which laws provide varying civil and
criminal penalties and liabilities for release of petroleum or its derivatives
into surface waters or into the ground.
 
GOVERNMENTAL REGULATION
 
  The Company's business and the natural gas industry in general are heavily
regulated. The availability of a ready market for natural gas production
depends on several factors beyond the Company's control. These factors include
regulation of natural gas production, federal and state regulations governing
environmental quality and pollution control, state limits on allowable rates
of production, the amount of natural gas available for sale, the availability
of adequate pipeline and other transportation and processing facilities and
the marketing of competitive fuels. State and federal regulations generally
are intended to prevent waste of natural gas, protect rights to produce
natural gas between owners in a common reservoir, control the amount of
natural gas produced by assigning allowable rates of production and control
contamination of the environment. Pipelines are subject to the jurisdiction of
various federal, state and local agencies. The Company takes the steps
necessary to comply with applicable regulations both on its own behalf and as
part of the services it provides to its investor partnerships. The Company
believes that it is in substantial compliance with such statutes, rules,
regulations and governmental orders, although there can be no assurance that
this is or will remain the case. The following discussion of the regulation of
the United States natural gas industry is not intended to constitute a
complete discussion of the various statutes, rules, regulations and
environmental orders to which the Company's operations may be subject.
 
                                      30
<PAGE>
 
 REGULATION OF NATURAL GAS EXPLORATION AND PRODUCTION
 
  The Company's natural gas operations are subject to various types of
regulation at the federal, state and local levels. Prior to commencing
drilling activities for a well, the Company must procure permits and/or
approvals for the various stages of the drilling process from the applicable
state and local agencies in the state in which the area to be drilled is
located. Such permits and approvals include those for the drilling of wells,
and such regulation includes maintaining bonding requirements in order to
drill or operate wells and regulating the location of wells, the method of
drilling and casing wells, the surface use and restoration of properties on
which wells are drilled, the plugging and abandoning of wells and the disposal
of fluids used in connection with operations. The Company's operations are
also subject to various conservation laws and regulations. These include the
regulation of the size of drilling and spacing units or proration units and
the density of wells, which may be drilled and the unitization or pooling of
natural gas properties. In this regard, some states allow the forced pooling
or integration of tracts to facilitate exploration while other states rely
primarily or exclusively on voluntary pooling of lands and leases. In areas
where pooling is voluntary, it may be more difficult to form units, and
therefore, more difficult to develop a project if the operator owns less than
100% of the leasehold. In addition, state conservation laws establish maximum
rates of production from natural gas wells, generally prohibit the venting or
flaring of natural gas and impose certain requirements regarding the
ratability of production. The effect of these regulations may limit the amount
of natural gas the Company can produce from its wells and may limit the number
of wells or the locations at which the Company can drill. The regulatory
burden on the natural gas industry increases the Company's costs of doing
business and, consequently, affects its profitability. Inasmuch as such laws
and regulations are frequently expanded, amended and reinterpreted, the
Company is unable to predict the future cost or impact of complying with such
regulations.
 
 REGULATION OF SALES AND TRANSPORTATION OF NATURAL GAS
 
  Historically, the transportation and sale for resale of natural gas in
interstate commerce have been regulated pursuant to the Natural Gas Act of
1938, the Natural Gas Policy Act of 1978 (the "NGPA") and the regulations
promulgated thereunder by FERC. Maximum selling prices of certain categories
of natural gas sold in "first sales," whether sold in interstate or intrastate
commerce, were regulated pursuant to the NGPA. The Natural Gas Wellhead
Decontrol Act (the "Decontrol Act") removed, as of January 1, 1993, all
remaining federal price controls from natural gas sold in "first sales" on or
after that date. FERC's jurisdiction over natural gas transportation was
unaffected by the Decontrol Act. While sales by producers of natural gas and
all sales of crude oil, condensate and natural gas liquids can currently be
made at market prices, Congress could reenact price controls in the future.
 
  The Company's sales of natural gas are affected by the availability, terms
and cost of transportation. The price and terms for access to pipeline
transportation are subject to extensive regulation. In recent years, FERC has
undertaken various initiatives to increase competition within the natural gas
industry. As a result of initiatives like FERC Order No. 636, issued in April
1992, the interstate natural gas transportation and marketing system has been
substantially restructured to remove various barriers and practices that
historically limited non-pipeline natural gas sellers, including producers,
from effectively competing with interstate pipelines for sales to local
distribution companies and large industrial and commercial customers. The most
significant provisions of Order No. 636 require that interstate pipelines
provide transportation separate or "unbundled" from their sales service, and
require that pipelines provide firm and interruptible transportation service
on an open access basis that is equal for all natural gas suppliers. In many
instances, the result of Order No. 636 and related initiatives have been to
substantially reduce or eliminate the interstate pipelines' traditional role
as wholesalers of natural gas in favor of providing only storage and
transportation services. Another effect of regulatory restructuring is the
greater transportation access available on interstate pipelines. In some
cases, producers and marketers have benefitted from this availability.
However, competition among suppliers has greatly increased and traditional
long-term producer-pipeline contracts are rare. Furthermore, gathering
facilities of interstate pipelines are no longer regulated by FERC, thus
allowing gatherers to charge higher gathering rates.
 
  Additional proposals and proceedings that might affect the natural gas
industry are pending before Congress, FERC, state commissions and the courts.
The natural gas industry historically has been very heavily regulated;
therefore, there is no assurance that the less stringent regulatory approach
recently pursued by FERC and
 
                                      31
<PAGE>
 
Congress will continue. The Company cannot determine to what extent future
operations and earnings of the Company will be affected by new legislation,
new regulations, or changes in existing regulation, at federal, state or local
levels.
 
 ENVIRONMENTAL REGULATIONS
 
  The Company's operations are subject to numerous laws and regulations
governing the discharge of materials into the environment or otherwise
relating to environmental protection. Public interest in the protection of the
environment has increased dramatically in recent years. The trend of more
expansive and stricter environmental legislation and regulations could
continue. To the extent laws are enacted or other governmental action is taken
that restricts drilling or imposes environmental protection requirements that
result in increased costs to the natural gas industry in general, the business
and prospects of the Company could be adversely affected.
 
  The Company generates wastes that may be subject to the Federal Resource
Conservation and Recovery Act ("RCRA") and comparable state statutes. The U.S.
Environmental Protection Agency ("EPA") and various state agencies have
limited the approved methods of disposal for certain hazardous and
nonhazardous wastes. Furthermore, certain wastes generated by the Company's
operations that are currently exempt from treatment as "hazardous wastes" may
in the future be designated as "hazardous wastes," and therefore be subject to
more rigorous and costly operating and disposal requirements.
 
  The Company currently owns or leases numerous properties that for many years
have been used for the exploration and production of oil and natural gas.
Although the Company believes that it has utilized good operating and waste
disposal practices, prior owners and operators of these properties may not
have utilized similar practices, and hydrocarbons or other wastes may have
been disposed of or released on or under the properties owned or leased by the
Company or on or under locations where such wastes have been taken for
disposal. These properties and the wastes disposed thereon may be subject to
the Comprehensive Environmental Response, Compensation and Liability Act
("CERCLA"), RCRA and analogous state laws as well as state laws governing the
management of oil and natural gas wastes. Under such laws, the Company could
be required to remove or remediate previously disposed wastes (including
wastes disposed of or released by prior owners or operators) or property
contamination (including groundwater contamination) or to perform remedial
plugging operations to prevent future contamination.
 
  CERCLA and similar state laws impose liability, without regard to fault or
the legality of the original conduct, on certain classes of persons that are
considered to have contributed to the release of a "hazardous substance" into
the environment. These persons include the owner or operator of the disposal
site or sites where the release occurred and companies that disposed of or
arranged for the disposal of the hazardous substances found at the site.
Persons who are or were responsible for release of hazardous substances under
CERCLA may be subject to joint and several liability for the costs of cleaning
up the hazardous substances that have been released into the environment and
for damages to natural resources, and it is not uncommon for neighboring
landowners and other third parties to file claims for personal injury and
property damage allegedly caused by the hazardous substances released into the
environment.
 
  The Company's operations may be subject to the Clean Air Act ("CAA") and
comparable state and local requirements. Amendments to the CAA were adopted in
1990 and contain provisions that may result in the gradual imposition of
certain pollution control requirements with respect to air emissions from the
operations of the Company. The EPA and states have been developing regulations
to implement these requirements. The Company may be required to incur certain
capital expenditures in the next several years for air pollution control
equipment in connection with maintaining or obtaining operating permits and
approvals addressing other air emission-related issues.
 
  The Company's expenses relating to preserving the environment during 1996
were not significant in relation to operating costs and the Company expects no
material change in 1997. Environmental regulations have had no materially
adverse effect on the Company's operations to date, but no assurance can be
given that environmental
 
                                      32
<PAGE>
 
regulations will not, in the future, result in a curtailment of production or
otherwise have a materially adverse effect on the Company's business,
financial condition or results of operations.
 
  As a matter of corporate policy and commitment, the Company attempts to
minimize the adverse environmental impact of all its operations. For example,
during 1996, the Company was one of the most active drilling companies in West
Virginia. Even with this level of activity, the Company was able to maintain a
high level of environmental sensitivity. During the 1990's, the Company has
been a four-time recipient of the West Virginia Department of Environmental
Protection's top award in recognition of the quality of the Company's
environmental and reclamation work in its drilling activities.
 
 UTILITY REGULATION
 
  PNG, which is an Ohio public utility, is subject to regulation by the Public
Utilities Commission of Ohio in virtually all of its activities, including
pricing and supply of services, addition of and abandonment of service to
customers, design and construction of facilities, and safety issues.
 
OPERATING HAZARDS AND INSURANCE
 
  The Company's exploration and production operations include a variety of
operating risks, including the risk of fire, explosions, blowouts, craterings,
pipe failure, casing collapse, abnormally pressured formations, and
environmental hazards such as gas leaks, ruptures and discharges of toxic gas,
the occurrence of any of which could result in substantial losses to the
Company due to injury and loss of life, severe damage to and destruction of
property, natural resources and equipment, pollution and other environmental
damage, clean-up responsibilities, regulatory investigation and penalties and
suspension of operations. The Company's pipeline, gathering and distribution
operations are subject to the many hazards inherent in the natural gas
industry. These hazards include damage to wells, pipelines and other related
equipment, and surrounding properties caused by hurricanes, floods, fires and
other acts of God, inadvertent damage from construction equipment, leakage of
natural gas and other hydrocarbons, fires and explosions and other hazards
that could also result in personal injury and loss of life, pollution and
suspension of operations.
 
  Any significant problems related to its facilities could adversely affect
the Company's ability to conduct its operations. In accordance with customary
industry practice, the Company maintains insurance against some, but not all,
potential risks; however, there can be no assurance that such insurance will
be adequate to cover any losses or exposure for liability. The occurrence of a
significant event not fully insured against could materially adversely affect
the Company's operations and financial condition. The Company cannot predict
whether insurance will continue to be available at premium levels that justify
its purchase or whether insurance will be available at all.
 
COMPETITION
 
  The Company believes that its exploration, drilling and production
capabilities and the experience of its management generally enable it to
compete effectively. The Company encounters competition from numerous other
natural gas companies, drilling and income programs and partnerships in all
areas of its operations, including drilling and marketing natural gas and
obtaining desirable natural gas leases. Many of these competitors possess
larger staffs and greater financial resources than the Company, which may
enable them to identify and acquire desirable producing properties and
drilling prospects more economically. The Company's ability to explore for
natural gas prospects and to acquire additional properties in the future
depends upon its ability to conduct its operations, to evaluate and select
suitable properties and to consummate transactions in this highly competitive
environment. The Company competes with a number of other companies which offer
interests in drilling partnerships with a wide range of investment objectives
and program structures. Competition for investment capital for both public and
private drilling programs is intense. The Company also faces intense
competition in the marketing of natural gas from competitors including other
producers as well as marketing companies. Also, international developments and
the possible improved economics of domestic natural gas exploration may
influence other oil companies to increase their domestic natural gas
exploration. Furthermore,
 
                                      33
<PAGE>
 
competition among natural gas companies for favorable natural gas prospects
can be expected to continue, and it is anticipated that the cost of acquiring
natural gas properties may increase in the future.
 
  Factors affecting competition in the natural gas industry include price,
location, availability, quality and volume of natural gas. The Company
believes that it can compete effectively in the natural gas industry on each
of the foregoing factors, due to the location of its wells near the large
demand centers for natural gas located in the northeastern United States and
the price premiums generally available for Appalachian Basin natural gas, the
quality and availability of the natural gas the Company produces, the
proximity of its wells to transportation and the significant volume of natural
gas produced by the Company on a daily basis. Nevertheless, the Company's
business, financial condition or results of operations could be materially
adversely affected by competition.
 
EMPLOYEES
 
  As of June 30, 1997, the Company had 74 employees, including 12 in finance,
seven in administration, 12 in exploration and development, 37 in production
and six in natural gas marketing. The Company's engineers, supervisors and
well tenders are generally responsible for the day-to-day operation of wells
and pipeline systems. In addition, the Company retains subcontractors to
perform drilling, fracturing, logging, and pipeline construction functions at
drilling sites. The Company's employees act as supervisors of the
subcontractors.
 
  The Company's employees are not covered by a collective bargaining
agreement. The Company considers relations with its employees to be excellent.
 
LEGAL PROCEEDINGS
 
  From time to time the Company is a party to various legal proceedings in the
ordinary course of business. The Company is not currently a party to any
litigation that it believes would materially affect the Company's business,
financial condition or results of operations.
 
FACILITIES
 
  The Company owns and occupies three buildings in Bridgeport, West Virginia,
two of which serve as the Company's headquarters and one which serves as a
field operating site. The Company also owns a field operating building in
Gilmer County, West Virginia. The Company believes that its current facilities
are sufficient for its current and anticipated operations.
 
                                      34
<PAGE>
 
                                  MANAGEMENT
 
DIRECTORS AND OFFICERS OF THE COMPANY
 
  The directors and officers of the Company, their principal occupations for
the past five years and additional information are set forth below:
 
<TABLE>
<CAPTION>
NAME                 AGE      POSITIONS AND OFFICES HELD
- ----                 ---      --------------------------
<S>                  <C>      <C>
James N. Ryan         66      Chairman, Chief Executive Officer and Director
Steven R. Williams    46      President and Director
Dale G. Rettinger     53      Chief Financial Officer, Executive Vice President, Treasurer and Director
Ersel E. Morgan       54      Vice President of Production
Thomas E. Riley       44      Vice President of Business Development
Eric R. Stearns       39      Vice President of Exploration and Development
Darwin L. Stump       42      Controller
Roger J. Morgan       70      Secretary and Director
Vincent F. D'Annunzio 45      Director
Jeffrey C. Swoveland  42      Director
</TABLE>
 
  James N. Ryan served as President of the Company from 1969 to 1983 and has
served as director of the Company since 1969. Mr. Ryan was elected Chairman
and Chief Executive Officer of the Company in March 1983. Mr. Ryan focuses on
capital formation through the Company's drilling partnerships.
 
  Steven R. Williams has served as President and director of the Company since
March 1983. Prior to joining the Company, Mr. Williams was employed by Exxon
as an engineer from 1973 until 1979. A 1981 graduate of the Stanford Graduate
School of Business, Mr. Williams was employed by Texas Oil and Gas Company as
a financial analyst from 1981 until July 1982, when he joined Exco Enterprises
as Manager of Operations, and served in that capacity until he joined the
Company.
 
  Dale G. Rettinger has served as Vice President and Treasurer of the Company
since July 1980. Additionally, Mr. Rettinger has served as President of PDC
Securities Incorporated since 1981. Mr. Rettinger was elected director in 1985
and appointed Chief Financial Officer in September 1997. Previously, Mr.
Rettinger was a partner with KPMG Main Hurdman, Certified Public Accountants,
and served in that capacity from 1976 until he joined the Company.
 
  Ersel E. Morgan has served as Vice President of Production of the Company
since 1996. Prior to assuming this position, Mr. Morgan served as the
Company's Manager of the Land and Operations groups from 1981 until 1993 and
as Manager of Production of the Company from 1993 to 1996.
 
  Thomas E. Riley has served as Vice President of Business Development of the
Company since April 1996. Mr. Riley co-founded and has served as President of
RNG since its inception in 1987 until the present. See "Certain Transactions."
 
  Eric R. Stearns has served as Vice President of Exploration and Development
of the Company since 1995. Mr. Stearns joined the Company in 1985 as a
wellsite geologist and served as Manager of Geology from 1988 until 1995.
 
  Darwin L. Stump has served as Controller of the Company since 1980.
Previously, Mr. Stump was a senior accountant with Main Hurdman, Certified
Public Accountants, having served in that capacity from 1977 until he joined
the Company.
 
  Roger J. Morgan, a director and Secretary of the Company since 1969, has
been a member of the law firm of Young, Morgan & Cann, Clarksburg, West
Virginia, for more than the past five years. Mr. Morgan is not active in the
day-to-day business of the Company, but his law firm provides legal services
to the Company.
 
  Vincent F. D'Annunzio, a director since February 1989, has for the past five
years served as President of Beverage Distributors, Inc. located in
Clarksburg, West Virginia. Mr. D'Annunzio serves as a director of Heritage
Bank in Clarksburg, West Virginia.
 
                                      35
<PAGE>
 
  Jeffrey C. Swoveland, a director since March 1991, has been employed by
Equitable Resources, an oil and gas production, marketing and distribution
company, since 1994 and presently serves as Treasurer. Mr. Swoveland
previously served as Vice President and a lending officer with Mellon Bank,
N.A. from July 1989 until 1994.
 
  The Company's By-Laws provide that the directors of the Company shall be
divided into three classes and that, at each annual meeting of stockholders of
the Company, successors to the class of directors whose term expires at the
annual meeting will be elected for a three-year term. The classes are
staggered so that the term of one class expires each year. Mr. Ryan and Mr.
D'Annunzio are members of the class whose term expires in 1998; Mr. Rettinger
and Mr. Swoveland are members of the class whose term expires in 1999; and Mr.
Williams and Mr. Morgan are members of the class whose term expires in 2000.
There is no family relationship between any director or executive officer and
any other director or executive officer of the Company. There are no
arrangements or understandings between any director or officer and any other
person pursuant to which such person was selected as an officer.
 
 COMMITTEES OF THE BOARD OF DIRECTORS
 
  The Company has three standing committees of the Board of Directors: the
Executive Committee; the Audit Committee; and the Stock Option and Executive
Compensation Committee. The Audit Committee is comprised of Messrs.
D'Annunzio, Ryan and Swoveland. The Executive Committee is comprised of
Messrs. Ryan, Williams and Rettinger. The Stock Option and Executive
Compensation Committee is comprised of Messrs. D'Annunzio and Swoveland. The
Company does not have a formal Nominating Committee, and the full Board of
Directors handles these responsibilities.
 
  The functions performed by the Executive Committee include handling
important Board of Directors matters that arise between Board of Directors
meetings, serving as a liaison between the Board of Directors and senior
management on important matters requiring Board of Directors attention and
recommending to the Board of Directors nominations for election of new and
existing members of the Board of Directors.
 
  The Audit Committee is comprised of a majority of outside Directors of the
Company. The functions performed by the Audit Committee include recommending
the selection of independent accountants, reviewing with the Company's
independent accountants the results of audits performed by them and overseeing
and reviewing monthly and quarterly unaudited financial statements. These
reviews include the adequacy of cash flow and the status of credit
arrangements of the Company.
 
  The Stock Option and Executive Compensation Committee is comprised entirely
of outside Directors of the Company. The functions performed by this committee
include recommending to the Board of Directors compensation levels of senior
management and directing and recommending levels of corporate stock options
and other benefit plans of the Company. In this regard, the committee monitors
trends to ensure the Company's compensation levels are competitive in the oil
and natural gas industry.
 
 COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
 
  The members of the Stock Option and Executive Compensation Committee are
Messrs. D'Annunzio and Swoveland. There are no Stock Option and Executive
Compensation Committee interlocks.
 
 INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
  The Company's By-Laws provide that the Company shall indemnify any director,
officer, employee, or other agent of the Company who is or was a party, or is
threatened to be made a party, to any proceeding (other than an action by or
in the right of the Company to procure a judgment in its favor) by reason of
the fact that such person is or was an agent of the Company against expenses,
judgments, fines, settlements, and other amounts actually and reasonably
incurred in connection with such proceeding, if that person acted in good
faith and in a manner that person reasonably believed to be in the best
interest of the Company, and in the case of a criminal proceeding, had no
reasonable cause to believe the conduct of that person was unlawful.
 
                                      36
<PAGE>
 
  The Company has entered into separate indemnification agreements with each
of its directors and officers whereby the Company has agreed to indemnify the
director or officer against all expenses, including attorneys' fees, and other
amounts reasonably incurred by the officer or director in connection with any
threatened, pending or completed civil, criminal, administrative or
investigative action or proceeding to which such person is party by reason of
the fact he is or was a director or officer, as the case may be, of the
Company, if the person acted in good faith and in a manner reasonably believed
to be in or not opposed to the best interests of the Company, and, with
respect to any criminal action or proceeding, the person had no reasonable
cause to believe such conduct to be unlawful. The agreements provide for the
advancement of expenses and that the Company has the right to purchase and
maintain insurance on behalf of the director or officer against any liability
or liabilities asserted against him, whether or not the Company would have the
power to indemnify the person against such liability under any provision of
the agreement. The Company has agreed to indemnify such person against
expenses actually and reasonably incurred in connection with any action in
which the person has been successful on the merits or otherwise.
Indemnification must also be provided by the Company (unless ordered otherwise
by a court) only as authorized in the specific case upon a determination that
the indemnification of the person is appropriate because he has met the
applicable standard of conduct described in the agreement made by (i) the
Board of Directors, by a majority vote of a quorum consisting of directors who
are not parties to such action or proceeding, (ii) by independent legal
counsel in a written opinion or (iii) the shareholders of the Company.
 
 DIRECTOR COMPENSATION
   
  Each non-salaried employee director and outside director of the Company is
paid an annual fee of $20,000 and $100 for each meeting of the Board of
Directors attended. Each inside director is paid an annual fee of $10,000.
    
EXECUTIVE COMPENSATION
 
  The following table sets forth in summary form the compensation received
during each of the Company's last three fiscal years by the Chief Executive
Officer and by each other executive officer of the Company whose salary and
bonus exceeded $100,000 in 1996 (the "Named Executives").
 
                          SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                ANNUAL COMPENSATION                     LONG TERM COMPENSATION
                     ----------------------------------------- -----------------------------------------
                                                    OTHER                        SECURITIES   ALL OTHER
      NAME AND                                  ANNUAL COMPEN- RESTRICTED STOCK  UNDERLYING   COMPENSA-
 PRINCIPAL POSITION  YEAR SALARY($) BONUS($)(1)  SATION($)(2)   AWARD(S)($)(3)  OPTIONS(#)(4) TION($)(5)
- -------------------- ---- --------- ----------- -------------- ---------------- ------------- ----------
<S>                  <C>  <C>       <C>         <C>            <C>              <C>           <C>
James N. Ryan        1996  164,295    153,383       10,000                                      10,897
 Chairman and Chief  1995  159,330    100,000       10,000          33,750         70,000        4,111
 Executive Officer   1994  154,078    107,500       10,000                                       4,086
Steven R. Williams   1996  125,895    173,383       10,000                                      10,862
 President and       1995  120,930    100,000       10,000          33,750         70,000        4,125
 Director            1994  115,678    107,500       10,000                                       4,017
Dale G. Rettinger
 Executive Vice
 President,          1996  125,895    173,383       10,000                                      10,862
 Treasurer           1995  120,930    100,000       10,000          33,750         70,000        4,125
 and Director        1994  115,678    107,500       10,000                                       4,017
</TABLE>
- --------
(1) During 1994, the Board of Directors approved a deferred compensation
    arrangement for the Named Executives. See "Employment and Other Agreements
    and Arrangements." Under the arrangements, each Named Executive may choose
    to defer any portion of his bonus compensation until retirement or
    separation from the Company. The Named Executives voluntarily deferred
    $80,000, $60,000 and $60,000, respectively, in 1996; $30,000 each in 1995;
    and $30,000 each in 1994. In 1996 and 1995, $30,000 of the deferred bonus
    compensation of Messrs. Williams and Rettinger was utilized to pay the
    premiums of split-dollar life insurance policies for Messrs. Williams and
    Rettinger.
 
                                      37
<PAGE>
 
(2) The respective Named Executives receive fees as directors of the Company
    of $10,000 per year.
 
(3) In 1995, the Company granted a restricted stock award of 30,000 shares of
    Common Stock to each of the Named Executives at the grant date market
    price of $1.125 per share. These shares will vest upon a Named Executive's
    retirement or involuntary separation from employment with the Company, or
    upon a change of control of the Company. The aggregate value of the
    holdings of each individual as of December 31, 1996 was $125,640.
 
(4) The exercise price of these options is $1.125 per share. In July 1997, the
    Company granted each Named Executive options to purchase 108,000 shares of
    Common Stock at an exercise price of $5.125 per share, the fair market
    value of such shares of Common Stock at the date of grant. The options may
    be exercised with respect to one-half of the shares granted thereunder on
    or after July 15, 1998 and with respect to one-half of the shares granted
    thereunder on or after July 15, 1999, provided that the grantee is
    employed with the Company on the exercise date. Such options expire on
    July 15, 2007.
 
(5) This amount includes contributions made by the Company under the Company's
    Employee Profit Sharing Plan and 401(k) plan. In 1996 and 1995 the Company
    contributed $50,000 and $28,500, respectively, to the Employee Profit
    Sharing Plan. Of these contributions, each of the Named Executives was
    credited $3,071 in 1996 and $1,815 in 1995. The Company provided a
    matching of 401(k) contributions based upon varying rates of the Named
    Executives' respective contributions. Of the total Company matching
    contribution of $139,800, $70,800 and $68,700 in 1996, 1995 and 1994, the
    Named Executives were credited with matching contributions of $7,826,
    $7,791 and $7,791, respectively, in 1996; $4,111, $4,125 and $4,125,
    respectively, in 1995; and $4,086, $4,017 and $4,017, respectively, in
    1994.
 
  AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR AND FISCAL YEAR-END OPTION
                                    VALUES
 
  The following table provides certain information with respect to options
exercised during 1996 by the persons named in the Summary Compensation Table
under the Company's stock option plans. The table also represents information
as to the number of options outstanding as of December 31, 1996 with respect
to options granted pursuant to the Company's Employee Stock Option Plans. No
options were granted in 1996. The table does not include stock options granted
in 1997.
 
<TABLE>
<CAPTION>
                                                                                 VALUE OF UNEXERCISED
                                          NUMBER OF UNEXERCISED OPTIONS         IN-THE-MONEY OPTIONS AT
                     NUMBER                      OF YEAR-END(#)                     YEAR-END(1)($)
                    OF SHARES    VALUE    -----------------------------        -------------------------
NAME                EXERCISED REALIZED($)  EXERCISABLE        UNEXERCISABLE    EXERCISABLE UNEXERCISABLE
- ----                --------- ----------- ----------------   ---------------   ----------- -------------
<S>                 <C>       <C>         <C>                <C>               <C>         <C>
James N. Ryan          --         --                 401,000               --   1,290,125       --
Steven R. Williams     --         --                 391,000               --   1,257,625       --
Dale G. Rettinger      --         --                 391,000               --   1,257,625       --
</TABLE>
- --------
(1) For all unexercised options held as of December 31, 1996, the aggregate
    dollar value is equal to the excess of the market value of the stock
    underlying those options over the exercise price of those unexercised
    options. On December 31, 1996, the closing sales price of the Common Stock
    was $4.1875 per share.
 
  In July 1997, the Company granted each Named Executive options to purchase
108,000 shares of Common Stock at an exercise price of $5.125 per share, the
fair market value of such shares of Common Stock at the date of grant. The
options may be exercised with respect to one-half of the shares granted
thereunder on or after July 15, 1998 and with respect to one-half of the
shares granted thereunder on or after July 15, 1999, provided that the grantee
is employed with the Company on the exercise date. Such options expire on July
15, 2007.
 
 EMPLOYMENT AND OTHER AGREEMENTS AND ARRANGEMENTS
 
  The Company has entered into employment agreements with each of the Named
Executives, each of which has a term that has been extended to December 31,
2000. Pursuant to the respective terms of the employment agreements, each of
the Named Executives is entitled to receive the basic annual salary set forth
therein that is subject to increase, but not decrease (unless dire economic
circumstances as declared by the Board of Directors requires a reduction for
all senior executive employees of the Company), as the Board of Directors may
 
                                      38
<PAGE>
 
determine to reflect changes in the cost of living, the financial success of
the Company and the performance of such Named Executive. For 1997, the basic
salary has been set by the Board of Directors under the respective agreements
as $170,760 for Mr. Ryan, $132,360 for Mr. Williams and $132,360 for Mr.
Rettinger. Each Named Executive is also entitled to be paid an annual bonus
equal to 2.5% of the Company's net pre-tax earnings for any year in which the
Company's net pre-tax earnings exceed $300,000. The Company has been required
to establish a deferred compensation plan, described below, for the Named
Executives and to fund such plan with an annual contribution of $30,000
commencing in 1994, subject to adjustment for inflation.
 
  In the event of a change in control of the Company, each Named Executive has
the right within six months after such change of control to elect to terminate
his employment under his employment agreement and receive severance
compensation equal to the sum of his basic salary plus an amount equal to the
average bonus paid to him over the preceding three years as provided in the
agreement multiplied by the remaining years of the employment agreement,
provided, however, that the minimum severance compensation must not be less
than the amount equal to three years of basic compensation plus an amount
equal to three times the average bonus paid to such person over the preceding
three-year period.
 
  Each employment agreement also provides that if the Company obtains the
right to sell working interests in any drilling program, the Named Executive
is entitled to participate as an investor in such oil and gas drilling project
subject to the prior approval by the Board of Directors of the terms of any
such participation.
 
  Each employment agreement contains a standard non-disclosure covenant. Each
employment agreement also provides that the Named Executive is prohibited
during the term of his employment and for a period of one year following his
termination from engaging in any business that is competitive with the
Company's oil and gas drilling business in West Virginia, unless his
termination results from a change of control of the Company. During any period
for which the non-competition provision prohibits the officer from pursuing
activities that would compete with the Company's business as provided in the
agreement following termination of the agreement, the Company is required to
pay the officer his basic salary and bonus as provided in the agreement.
 
  In the event of termination under the terms of the agreement, the Company
will be required to loan to the officer funds equal to the exercise price of
all options held by the Named Executive under the Company's stock option
plans, which loan, if made, must be repaid within nine months and will bear
interest at the prime rate then in effect.
 
  Each employment agreement may be terminated for cause for willful
misfeasance or malfeasance, disregard of the Named Executive's duties or
negligence related to the performance of his duties, if so determined by a
court of competent jurisdiction. Also, the Company may terminate the
employment agreement without cause, in which case the Company must either (i)
reassign the Named Executive to a comparable executive position or designate
him as a consultant for the remaining term of his agreement or (ii) pay him
liquidated damages in an amount equal to his then basic salary for the
remaining term of the employment agreement, with a minimum payment equal to
twelve months of basic salary.
 
  The Company has entered into an employment agreement with Thomas E. Riley.
The term of the employment agreement expires on March 31, 2000. Mr. Riley's
compensation under the employment agreement includes an annual base salary of
$70,000, a guaranteed annual bonus of $40,000 and an annual performance bonus
based on Mr. Riley's contribution to the Company and the overall success and
status of the Company, as determined by the Compensation Committee and as
approved by the Board of Directors.
 
  The Company has entered into stock redemption agreements with each of the
Named Executives. The agreements require the Company to maintain life
insurance policies on each of them in the amount of $1 million. At the
election of the Named Executive's estate or heirs made within one year of such
person's death, the Company must utilize the proceeds from such insurance
policies to purchase from his estate or heirs all or a portion of his shares
of the Company's Common Stock owned by him, including shares subject to
outstanding stock options or warrants owned by such Named Executive at the
time of his death, up to an aggregate sale price of $1 million. The purchase
price for such shares of Common Stock will be based upon the average closing
asked price for the Company's Common Stock as quoted by Nasdaq during a
specified period. The Company is
 
                                      39
<PAGE>
 
not required to purchase any shares in excess of the amount provided by such
insurance policies. If the Named Executive's estate or heirs elect not to sell
any or all of the shares to the Company, the estate or heirs will be precluded
from selling the shares to anyone for a period of two years after the date of
the person's death, except that the shares may be transferred into the names
of the decedent's heirs and beneficiaries and the stock sold pursuant to Rule
144 under the Securities Act. If the Named Executive terminates his employment
with the Company or disposes of all or substantially all of his shares of
Common Stock in the Company, the Named Executive has the right to purchase his
respective insurance policy for a price equal to the cash surrender value of
the policy as of the date of such event. If the Named Executive fails to
purchase the policy within ninety days after such event, the Company may
cancel all policies covering the life of the Named Executive. The stock
redemption agreements will terminate upon bankruptcy or cessation of business
by the Company.
 
  Mr. Ryan, Mr. Williams and Mr. Rettinger are also the participants in the
Company's deferred bonus compensation plan. Under this plan, the Company's
Board of Directors must declare a year-end bonus for each participant, the
receipt of which is automatically deferred pursuant to the plan, unless prior
to the beginning of a particular year, the participant enters into a voluntary
bonus compensation agreement under which he irrevocably elects to receive his
year-end bonus as cash compensation, payable as soon as practicable following
the end of the year. The amount of the participant's year-end bonus is a
minimum of $30,000 or such greater amount as may be declared by the Board of
Directors. The participant also has the right to elect to defer receipt of his
other bonus compensation under this plan. Any bonus compensation deferred
under this plan will not be paid until such participant's retirement, or upon
termination of employment, disability or death or upon hardship, as provided
in the plan. A trustee selected by the Board of Directors maintains accounts
for each participant under the plan. The Company has reserved the right to
terminate the deferred bonus compensation plan, in whole or in part, at any
time and without liability for such termination or discontinuance.
 
STOCK OPTION PLANS
 
  Under the Company's incentive stock option plans, options to purchase shares
of Common Stock of the Company may be granted to certain officers and key
employees of the Company, which options are intended to qualify as incentive
stock options under the provisions of the Internal Revenue Code. Under the
plan adopted in 1997, the Company may grant options for up to an aggregate of
500,000 shares of Common Stock at an exercise price of not less than 100% of
the fair market value per share of the Company's Common Stock on the date of
grant. The options may be exercised with respect to one-half of the shares
granted on or after the first anniversary of the date of grant and with
respect to the other one-half of the shares granted on or after the second
anniversary of the date of grant. Options generally will expire ten years from
the date of grant if not exercised. A dissolution or liquidation of the
Company or a merger or consolidation in which the Company is not the surviving
corporation will cause each outstanding option to terminate, provided that
each optionee, in such event, will have the right immediately prior to said
dissolution or liquidation or merger or consolidation to exercise his option
in whole or in part without regard to any installment vesting provisions with
respect to such options. Options have been granted for all shares available
under the plan. Under the plan adopted in 1990, the Company may grant options
for up to an aggregate of 500,000 shares of Common Stock at an exercise price
of not less than 100% of the fair market value per share of the Company's
Common Stock on the date of grant. Options generally will expire five years
from the date of grant if not exercised. A dissolution or liquidation of the
Company or a merger or consolidation in which the Company is not the surviving
corporation will cause each outstanding option to terminate, provided that
each optionee, in such event, will have the right immediately prior to said
dissolution or liquidation or merger or consolidation to exercise his option
in whole or in part without regard to any installment vesting provisions with
respect to such options. Options have been granted for all shares available
under the plan.
 
KEY-MAN LIFE INSURANCE
 
  The Company maintains key-man life insurance policies on the lives of
Messrs. Ryan, Williams and Rettinger in the amounts of $5.0 million, $1.0
million and $1.0 million, respectively. The Company is the beneficiary of each
policy.
 
                                      40
<PAGE>
 
                             CERTAIN TRANSACTIONS
 
  In January 1996, the Company repurchased 1,200,000 shares of Common Stock
(approximately 11% of the then outstanding shares of Common Stock) from PNC
Bank, N.A. ("PNC") for a purchase price of $1.0 million, or $0.83 per share,
pursuant to the Second Amended and Restated Option Agreement dated April 30,
1993 between the Company and PNC. PNC had acquired 1,562,500 shares of the
Company's Common Stock (of which 1,381,250 shares were owned by PNC at the
date of the repurchase) in exchange for the partial forgiveness of certain
indebtedness of the Company to PNC pursuant to the Fourth Amended and Restated
Loan Agreement between the Company and PNC. The shares were retired by the
Company immediately following the repurchase.
 
  In April 1996, the Company acquired RNG in a stock-for-stock exchange for
236,094 shares of the Company's Common Stock, which had a market value of
$449,100 at that time. RNG is an Appalachian Basin natural gas marketing
company that specializes in the acquisition and aggregation of Appalachian
Basin production. Thomas E. Riley, Donna Riley, Mr. Riley's wife, and a co-
founder and an employee of RNG, and three other employees of RNG joined the
Company at that time.
 
  Roger J. Morgan, Secretary and Director of the Company, is a senior partner
of Young, Morgan & Cann, a law firm which the Company has retained to provide
various legal services for the Company, including during the year ended
December 31, 1996.
 
  With respect to transactions with Messrs. Ryan, Williams and Rettinger, see
"Management--Executive Compensation--Employment and Other Agreements and
Arrangements."
 
                                      41
<PAGE>
 
                      PRINCIPAL AND SELLING STOCKHOLDERS
 
  The following table sets forth certain information regarding ownership of
the Company's Common Stock as of September 15, 1997, and as adjusted to
reflect the sale of the Common Stock offered hereby, by: (a) each person known
by the Company to own beneficially more than 5% of the outstanding shares of
Common Stock; (b) each director of the Company; (c) each Named Executive; (d)
a selling stockholder who does not own more than 5% of the Company's Common
Stock and who is not a director or executive officer of the Company; and (e)
all directors and executive officers as a group.
 
<TABLE>
<CAPTION>
                            BENEFICIAL OWNERSHIP                   BENEFICIAL OWNERSHIP
                          PRIOR TO THE OFFERING(1)                 AFTER THE OFFERING(1)
                          --------------------------- SHARES BEING -------------------------
NAME AND ADDRESS              NUMBER       PERCENT      OFFERED       NUMBER       PERCENT
- ----------------          -------------- ------------ ------------ ------------- -----------
<S>                       <C>            <C>          <C>          <C>           <C>
James N. Ryan(2)........       1,030,474        9.0%    100,000          930,474       6.3%
103 East Main Street
Bridgeport,WV26330
Fidelity Management.....         995,000        9.1         --           995,000       6.9
82 Devonshire Street
Boston, MA 02109
Steven R. Williams(3)...         649,000        5.7     100,000          549,000       3.7
103 East Main Street
Bridgeport, WV 26330
Dale G. Rettinger(3)....         617,834        5.4     100,000          517,834       3.5
103 East Main Street
Bridgeport, WV 26330
Thomas E. Riley.........         236,094        2.1      50,000          186,094       1.3
Roger J. Morgan(4)......         132,504        1.2         --           132,504         *
Vincent F.
D'Annunzio(5)...........          53,600          *         --            53,600         *
Jeffrey C. Swoveland(6).          23,550          *         --            23,550         *
All directors and
 executive officers as a
 group
 (6 persons)(7).........       2,506,962       20.4     300,000        2,206,962      14.0
</TABLE>
- --------
* Less than 1%
   
(1) Includes shares over which the person currently holds or shares voting or
    investment power. Unless otherwise indicated in the footnotes to this
    table, the persons named in this table have sole voting and investment
    power with respect to the shares beneficially owned. Percentage of
    beneficial ownership is calculated assuming 10,985,753 shares of Common
    Stock outstanding on September 15, 1997 (including 500,000 shares issued
    and sold by the Company in the Private Placement) and 14,485,753 shares of
    Common Stock outstanding after completion of this offering.     
   
(2) Includes 406,250 shares owned jointly with Mr. Ryan's wife, 118,119 shares
    owned by Mr. Ryan's wife and 64,258 shares owned by Mr. Ryan's wife as
    guardian for their minor grandchildren. The balance of the shares are
    owned solely by Mr. Ryan. The shares to be sold in this offering are
    registered in the name of Mr. Ryan's wife. Also includes options to
    purchase 401,000 shares of Common Stock that Mr. Ryan can currently
    exercise or that will become exercisable within 60 days. Excludes 108,000
    shares underlying options granted on July 15, 1997 exercisable after such
    60-day period.     
   
(3) Includes options to purchase 391,000 shares that such person can currently
    exercise or that will become exercisable within 60 days. Excludes 108,000
    shares underlying option granted to such person on July 15, 1997
    exercisable after such 60-day period.     
(4) Includes options to purchase 77,500 shares that Mr. Morgan can currently
    exercise or that will become exercisable within 60 days.
(5) Includes options to purchase 43,600 shares that Mr. D'Annunzio can
    currently exercise or that will become exercisable within 60 days.
(6) Includes options to purchase 23,550 shares that Mr. Swoveland can
    currently exercise or that will become exercisable within 60 days.
(7) Includes options to purchase an aggregate of 1,327,650 shares that such
    persons can currently exercise or that will become exercisable within 60
    days.
 
                                      42
<PAGE>
 
                         DESCRIPTION OF CAPITAL STOCK
 
  The Company's authorized capital stock consists of 22,250,000 shares of
Common Stock, par value $.01 per share, and 2,750,000 shares of Common Stock,
Class A, par value $0.01 per share ("Class A Common Stock"). Following
consummation of this offering, there will be approximately 14,485,753 shares
of Common Stock outstanding, and no shares of Class A Common Stock will be
outstanding.
 
COMMON STOCK
 
  Holders of Common Stock are entitled to one vote for each share held on all
matters submitted to vote of stockholders and do not have cumulative voting
rights. Accordingly, a holder of a majority of the outstanding shares of
Common Stock entitled to vote in any election of Directors may elect all the
Directors standing for election. Holders of Common Stock are entitled to
receive ratably such dividends, if any, as may be declared by the Board of
Directors out of funds legally available therefor. Upon the liquidation,
dissolution or winding up of the Company, holders of Common Stock are entitled
to receive ratably the net assets of the Company available for distribution
after the payment of all debts and other liabilities of the Company. Holders
of Common Stock have no preemptive, subscription, redemption or conversion
rights. The outstanding shares of Common Stock are, and the shares offered
hereby when issued and paid for will be, fully paid and nonassessable.
 
CLASS A COMMON STOCK
 
  The Board of Directors is empowered by the Company's Articles of
Incorporation to designate and issue from time to time one or more classes or
series of Class A Common Stock without any action of the stockholders. The
Class A Common Stock is identical in all respects to the Common Stock, except
that the Class A Common Stock shares (i) carry no right to vote for the
election of directors of the Company and no right to vote on any matter
presented to the shareholders for their vote or approval and (ii) are
convertible at the option of the holder thereof into shares of Common Stock on
a one-for-one basis. No shares of Class A Common Stock have been issued and
the Company does not presently contemplate the issuance of such shares.
 
WARRANTS
 
  Warrants to purchase up to an aggregate of 125,000 shares of Common Stock
are outstanding. Each warrant is exercisable for one share of Common Stock at
a price of $6.00 per share and is exercisable prior to September 15, 1999.
 
CERTAIN CORPORATE ANTI-TAKEOVER PROVISIONS
 
  The Company's By-Laws provide for the Board of Directors to be divided into
three classes of directors serving staggered three-year terms. The
classification system of electing directors may discourage a third party from
making a tender offer or otherwise attempting to obtain control of the Company
and may maintain the incumbency of the Board of Directors, as it generally
makes it more difficult for stockholders to replace a majority of the members
of the Board of Directors.
 
  The Nevada general corporation law (the "NGCL") provides that directors and
officers may, in discharging their duties, consider the interests of a number
of different constituencies, including stockholders, employees, suppliers,
customers and creditors; the economy of the state and nation; the interests of
the community and society; and the long-term as well as short-term interest of
the Company and its stockholders. Directors and officers are not required to
consider the interests of the stockholders to a greater degree than other
constituencies' interests.
 
  The NGCL also contains several other anti-takeover provisions identified
below that will be applicable to the Company. The NGCL's "Combinations with
Interested Stockholders" statute, which applies to a Nevada corporation having
at least 200 stockholders, and which, unless the Articles of Incorporation
provide otherwise, has a class of voting shares registered under the Exchange
Act, prohibits an "interested stockholder" from entering into a "combination"
with the corporation, unless certain conditions are met. A "combination"
includes (a) any merger or consolidation with an interested stockholder, (b)
any sale, lease, exchange, mortgage,
 
                                      43
<PAGE>
 
pledge, transfer or other disposition of assets, in one transaction or a
series of transactions, to an interested stockholder, having: (i) an aggregate
market value equal to 5% or more of the aggregate market value of the
corporation's assets; (ii) an aggregate market value equal to 5% or more of
the aggregate market value of all outstanding shares of the corporation; or
(iii) representing 10% or more of the earning power or net income of the
corporation, or (c) any issuance or transfer of shares of the corporation or
its subsidiaries to an interested stockholder having an aggregate market value
equal to 5% or more of the aggregate market value of all the outstanding
shares of the corporation. An "interested stockholder" is a person who,
together with affiliates and associates, beneficially owns directly or
indirectly (or within the prior three years, did beneficially own) 10% or more
of the corporation's voting stock. A stockholder who owned 10% or more of the
corporation's stock on January 1, 1991 is not an interested stockholder.
 
  A corporation to which the statute applies may not engage in a "combination"
with the interested stockholder within three years after the interested
stockholder acquired its shares, unless the combination or the interested
stockholder's acquisition of the shares making the stockholder an interested
stockholder was approved by the board of directors before the interested
stockholder acquired such shares. If this prior approval is not obtained, then
after the three-year period expires, the combination may be consummated either
by the approval of the board of directors or a majority of the voting power
held by disinterested stockholders at a meeting called after expiration of the
three-year period, or if the consideration to be paid by the interested
stockholder is at least equal to the higher of: (i) the highest price per
share paid by the interested stockholder within the three years immediately
preceding the date of the announcement of the combination or in the
transaction in which it became an interested stockholder, whichever is higher,
plus interest as provided in the statute; or (ii) the market value per common
share on the date of announcement of the combination or the date the
interested stockholder acquired the shares, whichever is higher; plus interest
as provided in the statute.
 
  Nevada's "Acquisition of Controlling Interest" statute prohibits a person or
group owning or offering to acquire voting shares of a corporation, under
certain circumstances, from voting shares of a target corporation's stock
after crossing certain threshold ownership percentages, unless such
corporation's Articles of Incorporation or By-Laws are amended to make the
statute inapplicable to the acquisition or unless the acquiror obtains the
approval of the target corporation's disinterested stockholders. The statute
specifies three thresholds: at least one-fifth but less than one-third, at
least one-third but less than a majority, and a majority or more, of the
outstanding voting power. Once an acquiror crosses one of the above
thresholds, shares which it acquired in the transaction taking it over the
threshold or within ninety days become "Control Shares" which are deprived of
the right to vote until a majority of the disinterested stockholders restore
that right. If an acquiror does not make certain timely demands on the target
corporation or if the stockholders fail to restore voting rights to the
acquiror, then the corporation may, if so provided in its Articles of
Incorporation or By-Laws, call certain of the acquiror's shares for
redemption. The Company's Articles of Incorporation and By-Laws do not
currently permit it to call an acquiror's shares for redemption under these
circumstances. The Acquisition of Controlling Interest statute also provides
that in the event the stockholders restore full voting rights to a holder of
Control Shares which owns a majority of the voting stock, then all other
stockholders who do not vote in favor of restoring voting rights to the
Control Shares may demand payment for the "fair value" of their shares (which
is generally equal to the highest price paid in the transaction subjecting the
stockholder to the statute). The Acquisition of Controlling Interest statute
applies only to a Nevada corporation with at least 200 stockholders, including
at least 100 record stockholders who are Nevada residents, and which does
business directly or indirectly in Nevada. As of the date of this Prospectus,
the Company does not have 100 record stockholders in Nevada and does not
conduct business in Nevada, although there can be no assurance that in the
future the Acquisition of Controlling Interest statute will not be applicable
to the Company.
 
  The provisions described above, together with the staggered Board of
Directors, may have the effect of delaying or deterring a change in the
control or management of the Company.
 
TRANSFER AGENT AND REGISTRAR
 
  The transfer agent and registrar for the Company's Common Stock is OTR Stock
Transfer, Portland, Oregon.
 
 
                                      44
<PAGE>
 
                        SHARES ELIGIBLE FOR FUTURE SALE
 
  Upon completion of this offering, the Company will have outstanding
14,485,753 shares of Common Stock. See "Capitalization." Of these shares, an
aggregate of 13,015,739 shares, consisting of (i) the 3,850,000 shares sold in
this offering (plus any additional shares sold upon the Underwriters' exercise
of their over-allotment option); and (ii) an aggregate of 9,165,739 shares,
without taking into account the lock-up agreements referred to below, that are
currently issued and outstanding, will be freely transferable by persons other
than "affiliates" of the Company without restriction or further registration
under the Securities Act. The remaining 1,470,014 shares of Common Stock are
"restricted securities" (the "Restricted Shares") within the meaning of Rule
144 and may not be sold in the absence of registration under the Securities
Act unless an exemption from registration is available, including an exemption
afforded by Rule 144.
 
  The Company and all of the Company's officers and directors and the Selling
Stockholders have entered into lock-up agreements with the Representative
providing that they will not offer, sell, contract to sell or grant any option
to purchase or otherwise dispose of any of the shares of Common Stock owned by
them without the prior written consent of the Representative. This restriction
will apply to all of the shares owned by them for 180 days after the date of
this Prospectus.
 
  Rule 144 provides that an affiliate of the Company or a person (or persons
whose sales are aggregated) who beneficially owned Restricted Shares for at
least one year but less than two years is entitled to sell, within any three-
month period, a number of shares that does not exceed the greater of one
percent of the then outstanding shares of Common Stock (144,858 shares
immediately after this offering) or the average weekly trading volume in the
Common Stock during the four calendar weeks preceding such sale. Sales under
Rule 144 also are subject to certain manner-of-sale provisions, notice
requirements and the availability of current public information about the
Company. However, a person who is not an "affiliate" of the Company at any
time during the three months preceding a sale, and who has beneficially owned
Restricted Shares for at least two years, is entitled to sell such shares
under Rule 144 without regard to the limitations described above.
 
  The Common Stock has been traded on the Nasdaq National Market.
Nevertheless, sales of a substantial amount of the Common Stock in the public
market, or the perception that such sales could occur, could adversely affect
the market price of the shares of Common Stock and could impair the Company's
future ability to raise capital through an offering of its equity securities.
See "Risk Factors--Shares Eligible for Future Sale."
 
                                      45
<PAGE>
 
                                 UNDERWRITING
 
  Subject to the terms and conditions contained in an underwriting agreement
(the "Underwriting Agreement"), the Underwriters named below, for whom
Pennsylvania Merchant Group Ltd is acting as representative (the
"Representative"), have severally agreed to purchase from the Company and the
Selling Stockholders, the respective number of shares of Common Stock set
forth opposite their names below.
 
<TABLE>
<CAPTION>
                                                                NUMBER OF SHARES
     UNDERWRITER                                                OF COMMON STOCK
     -----------                                                ----------------
<S>                                                             <C>
Pennsylvania Merchant Group Ltd...............................
 
                                                                   ---------
     Total....................................................     3,850,000
                                                                   =========
</TABLE>
 
  The Underwriting Agreement provides that the obligations of the several
Underwriters to pay for and accept delivery of the shares of Common Stock
offered hereby are subject to approval of certain legal matters by their
counsel and to certain other conditions. The Underwriters are obligated to
take and pay for all the shares of Common Stock offered hereby (other than
those covered by the over-allotment option described below) if any such shares
of Common Stock are taken.
 
  The Company and Selling Stockholders have been advised by the Representative
that the Underwriters propose initially to offer the shares of Common Stock,
in part, directly to the public at the price set forth on the cover page of
this Prospectus and, in part, to certain dealers at such price less a
concession not in excess of $     per share. The Underwriters may allow, and
such dealers may reallow, a concession not in excess of $     per share to
certain other dealers. After the initial offering of the Common Stock, the
offering price and other selling terms may be changed by the Representative.
 
  The Company has granted to the Underwriters an option, exercisable within 30
days after the date of this Prospectus, to purchase, from time to time in
whole or in part, up to 577,500 additional shares of Common Stock at the
public offering price, less the underwriting discounts and commissions, all as
set forth on the cover page of this Prospectus. The Underwriters may exercise
such option solely for the purpose of covering over-allotments, if any, made
in connection with the offering. To the extent such option is exercised, each
Underwriter will become obligated, subject to certain conditions, to purchase
approximately the same percentage of such additional shares as the number of
shares of Common Stock to be purchased by such Underwriter shown in the above
table bears to the total number of shares of Common Stock shown in the above
table.
 
  Each of the Company and the Selling Stockholders have agreed to indemnify
the Underwriters against certain liabilities, including liabilities under the
Securities Act.
   
  The Company has agreed to pay the Representative a non-accountable expense
allowance of $150,000 upon consummation of this offering.     
 
  In connection with the offering, the Underwriters may engage in transactions
that stabilize, maintain or otherwise effect the price of the Common Stock.
Specifically, the Underwriters may over-allot the offering, creating a
syndicate short position. In addition, the Underwriters may bid for and
purchase shares of Common Stock in the open market to cover such syndicate
short position or to stabilize the price of the Common Stock. These activities
may stabilize or maintain the market price of the Common Stock above
independent market levels. The Underwriters are not required to engage in
these activities, and may end any of these activities at any time.
 
  The Underwriters and dealers may engage in passive market making
transactions in the Common Stock in accordance with Rule 103 of Regulation M
promulgated by the SEC. In general, a passive market maker may not bid for, or
purchase, the Common Stock at a price that exceeds the highest independent
bid. In addition, the net daily purchases made by any passive market maker
generally may not exceed 30% of its average daily trading
 
                                      46
<PAGE>
 
volume in the Common Stock during a specified two-month prior period, or 200
shares, whichever is greater. A passive market maker must identify passive
market making bids as such on the Nasdaq electronic inter-dealer reporting
system. Passive market making may stabilize or maintain the market price of
the Common Stock above independent market levels. Underwriters and dealers are
not required to engage in passive market making and may end passive market
making activities at any time.
 
  Each of the Company, its executive officers and directors and certain
stockholders of the Company (including the Selling Stockholders) has agreed,
subject to certain exceptions, not to (i) offer, pledge, sell, contract to
sell, sell any option or contract to purchase, purchase any option or contract
to sell, grant any option, right or warrant to purchase or otherwise transfer
or dispose of, directly or indirectly, any shares of Common Stock or any
securities convertible into or exercisable or exchangeable for Common Stock or
(ii) enter into any swap or other arrangement that transfers all or a portion
of the economic consequences associated with the ownership of any Common Stock
(regardless of whether any of the transactions described in clause (i) or (ii)
is to be settled by the delivery of Common Stock, or such other securities, in
cash or otherwise) for a period of 180 days after the date of this Prospectus
without the prior written consent of the Representative. In addition, during
such 180-day period, without the Representative's prior written consent, the
Company has also agreed not to file any registration statement with respect
to, and each of its executive officers and directors and certain stockholders
of the company (including the Selling Stockholders) has agreed not to make any
demand for, or exercise any right with respect to, the registration of any
shares of Common Stock or any securities convertible into or exercisable or
exchangeable for Common Stock.
 
                                 LEGAL MATTERS
 
  The validity of the Common Stock offered hereby will be passed upon for the
Company by Duane, Morris & Heckscher LLP, Washington, DC. Certain legal
matters in connection with the offering will be passed on for the Underwriters
by Buchanan Ingersoll, Princeton, New Jersey.
 
                                    EXPERTS
 
  The consolidated financial statements and schedule of the Company as of
December 31, 1996 and 1995, and for each of the years in the three-year period
ended December 31, 1996, included herein and elsewhere in the registration
statement, have been included herein and in the registration statement in
reliance upon the reports of KPMG Peat Marwick LLP, independent auditors,
appearing elsewhere herein and in the registration statement, and upon the
authority of such firm as experts in accounting and auditing.
 
  With respect to the unaudited interim financial information for the periods
ended March 31, 1997 and 1996 and June 30, 1997 and 1996, incorporated by
reference herein, the independent certified public accountants have reported
that they applied limited procedures in accordance with professional standards
for a review of such information. However, their separate reports included in
the Company's quarterly reports on Form 10-Q for the quarters ended March 31,
1997 and June 30, 1997, and incorporated by reference herein, state that they
did not audit and they do not express an opinion on that interim financial
information. Accordingly, the degree of reliance on their reports on such
information should be restricted in light of the limited nature of the review
procedures applied. The accountants are not subject to the liability
provisions of Section 11 of the Securities Act for their reports on the
unaudited interim financial information because the reports are not a "report"
or a "part" of the registration statement prepared or certified by the
accountants within the meaning of Sections 7 and 11 of the Securities Act.
   
  The Summary Reserve Report of Wright & Company, Inc., independent petroleum
engineers, annexed hereto as Appendix A, containing estimates of proved
natural gas and oil reserves and related future net revenues and the present
value thereof, and the estimates of proved natural gas and oil reserves and
related future net revenues and the present value thereof as of December 31,
1996 and June 30, 1997 included in the registration statement, have been
derived from the reserve report of such firm and certain engineering reports
prepared by the Company and reviewed by such firm. All of such information has
been so included herein in reliance upon the authority of such firm as experts
in such matters.     
 
                                      47
<PAGE>
 
                             AVAILABLE INFORMATION
   
  The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and in accordance
therewith files reports, proxy statements and other information with the SEC.
Such reports, proxy statements and other information filed by the Company with
the SEC can be inspected and copies at the public reference facilities
maintained by the SEC at Room 1024, 450 Fifth Street, N.W., Judiciary Plaza,
Washington, DC 20549, and at the following regional offices of the SEC: 7
World Trade Center, Suite 1300, New York, NY 10048; and Citicorp Center, 500
West Madison Street, Suite 1400, Chicago, IL 60661-2511. In addition, such
materials can also be obtained from the SEC's web site at http://www.sec.gov.
The Common Stock of the Company is traded on the Nasdaq National Market under
the symbol PETD, and copies of the above reports, proxy statements and other
information may also be inspected at the offices of Nasdaq Operations, 1735 K
Street, Washington, DC 20006.     
 
  The Company has filed with the SEC a Registration Statement on Form S-2 (the
"Registration Statement") under the Securities Act with respect to the
securities offered hereby. This Prospectus does not contain all of the
information set forth in the Registration Statement and the exhibits and
schedules thereto. For further information with respect to the Company and the
securities offered hereby, reference is hereby made to the Registration
Statement and the exhibits and schedules filed therewith. Statements contained
herein as to the content of any contract or other document are not necessarily
complete and, in each instance, reference is made to the copy of such contract
or other document filed as an exhibit to the Registration Statement, and each
such statement shall be deemed qualified in its entirety by such references.
The Registration Statement and any amendments thereto, including exhibits
filed or incorporated by reference as a part thereof, may be obtained from the
principal office of the SEC in Washington, DC, upon payment of the fees
prescribed by the SEC.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
  The Company hereby incorporates into this Prospectus by reference its Annual
Report on Form 10-K for the fiscal year ended December 31, 1996 and its
Quarterly Reports on Form 10-Q for the quarters ended March 31, 1997 and June
30, 1997 filed with the SEC pursuant to Section 13 or 15(d) of the Exchange
Act.
 
  The Company will provide without charge to each person, including any
beneficial owner, to whom a copy of this Prospectus is delivered, upon the
written or oral request of any such person, a copy of any and all of the
documents incorporated herein by reference, other than exhibits to such
documents (except for exhibits that are specifically incorporated herein by
reference herein). Requests for such copies shall be directed to Steven R.
Williams, President, Petroleum Development Corporation, 103 East Main Street,
Bridgeport, West Virginia, 26330, telephone number (304) 842-6256.
 
                                      48
<PAGE>
 
                      GLOSSARY OF CERTAIN INDUSTRY TERMS
 
  The definitions set forth below shall apply to the indicated terms as used
in this Prospectus. All volumes of natural gas referred to herein are stated
at the legal pressure base of the state or area where the reserves exist and
at 60 degrees Fahrenheit and in most instances are rounded to the nearest
multiple.
 
  Bbl. One stock tank barrel, or 42 U.S. gallons liquid volume, used herein
reference to crude oil or other liquid hydrocarbons.
 
  Bcf. Billion cubic feet.
 
  Btu or British Thermal Unit. The quantity of heat required to raise the
temperature of one pound mass of water from 58.5 to 59.5 degrees Fahrenheit.
 
  CNG system. Consolidated Natural Gas Transmission Company pipeline system.
 
  Completion. The installation of permanent equipment for the production of
oil or natural gas or, in the case of a dry hole, the reporting of abandonment
to the appropriate agency.
 
  Developed acreage. The number of acres which are allocated or assignable to
producing wells or wells capable of production.
 
  Development well. A well drilled to extend the limits of an already
developed pool, or within a proved area of an oil or gas reservoir to the
depth of a stratigraphic horizon known to be productive.
 
  Drilled well. A well for which the Company supervised the drilling activity
or in which it has a working interest.
 
  Dry hole or well. A well found to be incapable of producing hydrocarbons in
sufficient quantities such that proceeds from the sale of such production fail
to exceed production expenses and taxes.
 
  Dth. One decatherm. One decatherm is equal to one million British thermal
units.
 
  Exploratory well. A well drilled to find and produce oil or natural gas
reserves not classified as proved, to find a new reservoir in a field
previously found to be productive of oil or natural gas in another reservoir
or to extend a known reservoir.
 
  Farm-in or farm-out. An agreement whereunder the owner of a working interest
in an oil and natural gas lease assigns the working interest or a portion
thereof to another party who desires to drill on the leased acreage.
Generally, the assignee is required to drill one or more wells in order to
earn its interest in the acreage. The assignor usually retains a royalty or
reversionary interest in the lease. The interest received by an assignee is a
"farm-in" while the interest transferred by the assignor is a "farm-out."
 
  Gross acres or gross wells. The total acres or wells, as the case may be, in
which a working interest is owned.
 
  Mcf. One thousand cubic feet.
 
  MMBtu. One million British Thermal Units.
 
  Net acres or net wells. When the sum of the fractional working interests
owned in gross acres or gross wells equals one.
 
  NYMEX. New York Mercantile Exchange.
 
  Present value. When used with respect to oil and natural gas reserves, the
estimated future gross revenue to be generated from the production of proved
reserves, net of estimated production and future development
 
                                      49
<PAGE>
 
costs, using prices and costs in effect as of the date indicated, without
giving effect to nonproperty-related expenses such as general and
administrative expenses, debt service and future income tax expense or to
depreciation, depletion and amortization, discounted using an annual discount
rate of 10%.
 
  Productive well. A well that is found to be capable of producing
hydrocarbons in sufficient quantities such that proceeds from the sale of such
production exceed production expenses and taxes.
 
  Proved reserves. The estimated quantities of crude oil, natural gas and
natural gas liquids that geological and engineering data demonstrate with
reasonable certainty to be recoverable in future years from known reservoirs
under existing economic and operating conditions.
 
  Proved developed reserves. Proved reserves that are expected to be recovered
through existing wells with existing equipment and operating equipment.
 
  Proved undeveloped location. A site on which a development well can be
drilled consistent with spacing rules for purposes of recovering proved
undeveloped reserves.
 
  Proved undeveloped reserves. Proved reserves that are expected to be
recovered from new wells on undrilled acreage or from existing wells where a
relatively major expenditure is required for recompletion.
 
  Recompletion. The completion for production of an existing well bore in
another formation from that in which the well has been previously completed.
 
  Reservoir. A porous and permeable underground formation containing a natural
accumulation of producible oil and/or natural gas that is confined by
impermeable rock or water barriers and is individual and separate from other
reservoirs.
 
  Royalty interest. An interest in an oil and natural gas property entitling
the owner to a share of oil or natural gas production free of costs of
production.
 
  Spot market. The cash market for natural gas. Generally, the Company's
natural gas contracts are based on a day-to-day or month-to-month spot.
 
  Tcf. Trillion cubic feet.
 
  Undeveloped acreage. Lease acreage on which wells have not been drilled or
completed to a point that would permit the production of commercial quantities
of oil and natural gas regardless of whether such acreage contains proved
reserves.
 
  Working interest. The operating interest that gives the owner the right to
drill, produce and conduct operating activities on the property and share of
production.
 
  Workover. Operations on a producing well to restore or increase production.
 
 
                                      50
<PAGE>
 
               PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<S>                                                                        <C>
                                                                           PAGE
                                                                           ----
CONSOLIDATED FINANCIAL STATEMENTS:
Independent Auditors' Report..............................................  F-2
Consolidated Balance Sheets at December 31, 1995 and 1996 and June 30,
 1997.....................................................................  F-3
Consolidated Statements of Income for the years ended December 31, 1994,
 1995
 and 1996 and six months ended June 30, 1996 and 1997.....................  F-4
Consolidated Statements of Stockholders' Equity for the years ended
 December 31, 1994,
 1995 and 1996 and six months ended June 30, 1997.........................  F-5
Consolidated Statements of Cash Flow for the years ended December 31,
 1994, 1995
 and 1996 and six months ended June 30, 1996 and 1997.....................  F-6
Notes to Consolidated Financial Statements................................  F-7
</TABLE>
 
                                      F-1
<PAGE>
 
                         INDEPENDENT AUDITORS' REPORT
 
The Stockholders and Board of Directors
Petroleum Development Corporation:
 
  We have audited the consolidated balance sheets of Petroleum Development
Corporation and subsidiaries as of December 31, 1996 and 1995, and the related
consolidated statements of income, stockholders' equity and cash flows for
each of the years in the three-year period ended December 31, 1996. These
consolidated financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these consolidated
financial statements based on our audits.
 
  We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.
 
  In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Petroleum
Development Corporation and subsidiaries as of December 31, 1996 and 1995, and
the results of their operations and their cash flows for each of the years in
the three-year period ended December 31, 1996, in conformity with generally
accepted accounting principles.
 
                                              KPMG PEAT MARWICK
 
Pittsburgh, Pennsylvania
March 13, 1997
 
                                      F-2
<PAGE>
 
               PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
                          CONSOLIDATED BALANCE SHEETS
<TABLE>
<CAPTION>
                                               DECEMBER 31,
                                          ------------------------   JUNE 30,
                                             1995         1996         1997
                                          -----------  -----------  -----------
 <S>                                      <C>          <C>          <C>
                                                                    (UNAUDITED)
                  ASSETS
 Current assets:
   Cash and cash equivalents (includes
    restricted cash of $1,734,900 in
    1996)................................ $10,053,600  $20,615,400  $ 8,461,600
   Notes and accounts receivable.........   2,016,600    6,696,000    4,851,800
   Inventories...........................     217,900      567,200      273,400
   Prepaid expenses......................     868,800      740,900      813,100
                                          -----------  -----------  -----------
     Total current assets................  13,156,900   28,619,500   14,399,900
 Properties and equipment:
   Oil and gas properties (successful
    efforts accounting method)...........  37,992,000   46,525,700   48,028,600
   Pipelines.............................   6,851,900    7,186,900    7,277,400
   Transportation and other equipment....   2,546,900    2,151,200    1,980,900
   Land and buildings....................     849,200    1,098,200    1,136,900
                                          -----------  -----------  -----------
                                           48,240,000   56,962,000   58,423,800
   Less accumulated depreciation,
    depletion and amortization...........  21,127,100   22,522,300   23,336,300
                                          -----------  -----------  -----------
                                           27,112,900   34,439,700   35,087,500
 Other assets............................     350,300      545,000      592,500
                                          -----------  -----------  -----------
                                          $40,620,100  $63,604,200  $50,079,900
                                          ===========  ===========  ===========
   LIABILITIES AND STOCKHOLDERS' EQUITY
 Current liabilities:
   Accounts payable...................... $ 2,119,100  $ 9,703,800  $ 6,882,700
   Accrued taxes.........................     155,100      506,000      694,900
   Other accrued expenses................   1,628,800    1,505,900    2,136,600
   Advances for future drilling
    contracts............................  10,069,600   18,397,000    3,954,400
   Funds held for future distribution....     704,000      864,000    1,043,900
                                          -----------  -----------  -----------
     Total current liabilities...........  14,676,600   30,976,700   14,712,500
 Long-term debt, excluding current
  maturities.............................   2,500,000    5,320,000    3,695,000
 Other liabilities.......................     601,700    1,094,200    1,242,500
 Deferred income taxes...................   2,920,900    3,140,800    3,419,900
 Commitments and contingencies
 Stockholders' equity:
   Common stock, par value $.01 per
    share; authorized
    22,250,000 shares; issued and
    outstanding 11,208,627, 10,460,753
    and 10,485,753.......................     112,100      104,600      104,900
   Common stock, Class A, par value $.01
    per share; authorized 2,750,000
    shares; issued and outstanding--none.         --           --           --
   Additional paid-in capital............   7,019,800    6,617,300    6,638,900
   Retained earnings.....................  12,878,000   16,427,400   20,336,900
   Unamortized stock award...............     (89,000)     (76,800)     (70,700)
                                          -----------  -----------  -----------
     Total stockholders' equity..........  19,920,900   23,072,500   27,010,000
                                          -----------  -----------  -----------
                                          $40,620,100  $63,604,200  $50,079,900
                                          ===========  ===========  ===========
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-3
<PAGE>
 
               PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
                       CONSOLIDATED STATEMENTS OF INCOME
<TABLE>
<CAPTION>
                                                                SIX MONTHS ENDED
                              YEARS ENDED DECEMBER 31,              JUNE 30,
                         ----------------------------------- -----------------------
                            1994        1995        1996        1996        1997
                         ----------- ----------- ----------- ----------- -----------
                                                                   (UNAUDITED)
<S>                      <C>         <C>         <C>         <C>         <C>
Revenues:
  Oil and gas well
   drilling operations.. $15,190,200 $13,941,000 $18,698,200 $10,732,600 $19,276,800
  Oil and gas sales.....   4,361,300   4,150,600  26,051,100   8,964,600  16,348,800
  Well operations and
   pipeline income......   3,730,300   3,750,900   3,928,800   1,847,100   2,248,100
  Other income..........     524,400     504,000     935,600     230,700     451,500
                         ----------- ----------- ----------- ----------- -----------
                          23,806,200  22,346,500  49,613,700  21,775,000  38,325,200
Costs and expenses:
  Cost of oil and gas
   well drilling
   operations...........  14,288,700  11,943,000  15,779,800   8,770,200  15,758,800
  Oil and gas purchases
   and
   production cost......   4,067,000   4,138,700  24,190,300   8,084,300  14,716,400
  General and
   administrative
   expenses.............   2,203,800   1,960,600   2,304,000   1,111,900   1,091,500
  Depreciation,
   depletion and
   amortization.........   1,848,200   2,152,100   2,309,600   1,207,400   1,220,400
  Interest..............     300,200     319,700     380,000     139,400     204,500
                         ----------- ----------- ----------- ----------- -----------
                          22,707,900  20,514,100  44,963,700  19,313,200  32,991,600
                         ----------- ----------- ----------- ----------- -----------
    Income before income
     taxes..............   1,098,300   1,832,400   4,650,000   2,461,800   5,333,600
Income taxes............     176,700     350,900   1,100,600     521,900   1,424,100
                         ----------- ----------- ----------- ----------- -----------
  Net income............ $   921,600 $ 1,481,500 $ 3,549,400 $ 1,939,900 $ 3,909,500
                         =========== =========== =========== =========== ===========
Earnings per common and
 common equivalent
 share.................. $      0.08 $      0.13 $      0.31 $      0.17 $      0.33
                         =========== =========== =========== =========== ===========
</TABLE>
 
 
          See accompanying notes to consolidated financial statements.
 
                                      F-4
<PAGE>
 
               PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
<TABLE>
<CAPTION>
                         COMMON STOCK ISSUED
                         --------------------
                                               ADDITIONAL
                           NUMBER               PAID-IN     RETAINED   UNAMORTIZED
                         OF SHARES    AMOUNT    CAPITAL     EARNINGS   STOCK AWARD    TOTAL
                         ----------  --------  ----------  ----------- ----------- -----------
<S>                      <C>         <C>       <C>         <C>         <C>         <C>
Balance, December 31,
 1993................... 10,831,921  $108,300  $6,652,500  $10,474,900  $    --    $17,235,700
                         ----------  --------  ----------  -----------  --------   -----------
Issuance of common
 stock:
  Purchase of
   properties...........     55,000       500     109,500          --        --        110,000
  Exercise of employee
   stock options........    153,706     1,600     111,600          --        --        113,200
Net income..............        --        --          --       921,600       --        921,600
                         ----------  --------  ----------  -----------  --------   -----------
  Balance, December 31,
   1994................. 11,040,627   110,400   6,873,600   11,396,500       --     18,380,500
                         ----------  --------  ----------  -----------  --------   -----------
Issuance of common
 stock:
  Exercise of employee
   stock options........     78,000       800      45,800          --        --         46,600
  Stock award...........     90,000       900     100,400          --   (101,300)          --
  Amortization of stock
   award................        --        --          --           --     12,300        12,300
Net income..............        --        --          --     1,481,500       --      1,481,500
                         ----------  --------  ----------  -----------  --------   -----------
  Balance, December 31,
   1995................. 11,208,627   112,100   7,019,800   12,878,000   (89,000)   19,920,900
                         ----------  --------  ----------  -----------  --------   -----------
Issuance of common
 stock:
  Exercise of employee
   stock options........    230,699     2,300     166,100          --        --        168,400
  Purchase of
   subsidiary...........    236,094     2,300     446,800          --        --        449,100
  Amortization of stock
   award................        --        --          --           --     12,200        12,200
Repurchase and
 cancellation
 of treasury stock...... (1,214,667)  (12,100) (1,015,400)         --        --     (1,027,500)
Net income..............        --        --          --     3,549,400       --      3,549,400
                         ----------  --------  ----------  -----------  --------   -----------
  Balance December 31,
   1996................. 10,460,753   104,600   6,617,300   16,427,400   (76,800)   23,072,500
                         ----------  --------  ----------  -----------  --------   -----------
Issuance of common
 stock:
  Exercise of employee
   stock options
   (unaudited)..........     25,000       300      21,600          --        --         21,900
  Amortization of stock
   award (unaudited)....        --        --          --           --      6,100         6,100
Net income (unaudited)..        --        --          --     3,909,500       --      3,909,500
                         ----------  --------  ----------  -----------  --------   -----------
  Balance June 30, 1997
   (unaudited).......... 10,485,753  $104,900  $6,638,900  $20,336,900  $(70,700)  $27,010,000
                         ==========  ========  ==========  ===========  ========   ===========
</TABLE>
 
 
          See accompanying notes to consolidated financial statements.
 
                                      F-5
<PAGE>
 
               PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                   SIX MONTHS ENDED
                              YEARS ENDED DECEMBER 31,                 JUNE 30,
                         -------------------------------------  -----------------------
                            1994         1995         1996         1996        1997
                         -----------  -----------  -----------  ----------  -----------
                                                                     (UNAUDITED)
<S>                      <C>          <C>          <C>          <C>         <C>
Cash flows from
 operating activities:
 Net income............. $   921,600  $ 1,481,500  $ 3,549,400  $1,939,900  $ 3,909,500
  Adjustment to net
   income to reconcile
   to cash provided by
   operating activities:
   Deferred income
    taxes...............      97,400      112,600      213,900      43,300      279,100
   Depreciation,
    depletion and
    amortization........   1,848,200    2,152,100    2,309,600   1,207,400    1,220,400
   Disposition of
    leasehold acreage...     173,600      201,300      151,700     100,300      120,000
   Employee compensation
    paid in stock.......     108,200       12,300       17,900      11,800        6,100
   Decrease (increase)
    in notes and
    accounts receivable.      39,400      (41,200)  (1,480,600)    254,700    1,844,200
   (Increase) decrease
    in inventories......     (38,100)     172,300     (349,300)    (15,800)     293,800
   (Increase) decrease
    in prepaid expenses.    (211,000)      10,600      203,300      16,900      (72,200)
   Decrease (increase)
    in other assets.....      65,100       65,800     (226,400)   (144,600)     (54,800)
   Increase (decrease)
    in accounts payable
    and accrued
    expenses............      92,200       42,300    3,938,200    (480,700)  (1,853,100)
   Increase (decrease)
    in advances for
    future drilling
    contracts...........   1,071,900      869,700    8,327,400  (7,834,400) (14,442,600)
   (Decrease) increase
    in funds held for
    future distribution.    (474,300)     337,300      160,000      13,000      179,900
   Other................      18,300      (95,800)      90,700      (9,800)     (58,800)
                         -----------  -----------  -----------  ----------  -----------
    Total adjustments...   2,790,900    3,839,300   13,356,400  (6,837,900) (12,538,000)
                         -----------  -----------  -----------  ----------  -----------
    Net cash provided by
     (used in)
     operating
     activities.........   3,712,500    5,320,800   16,905,800  (4,898,000)  (8,628,500)
                         -----------  -----------  -----------  ----------  -----------
Cash flows from
 investing activities:
 Capital expenditures...  (5,606,500)  (3,910,400) (10,415,500) (1,092,700)  (2,711,500)
 Proceeds from sale of
  leases................     282,100      289,400      655,400     327,100      729,000
 Proceeds from sale of
  fixed assets..........      34,200       36,700       10,800       9,000       60,300
 Net cash acquired from
  purchase
  of subsidiary.........         --           --     1,450,000   1,450,000          --
                         -----------  -----------  -----------  ----------  -----------
    Net cash (used in)
     provided by
     investing
     activities.........  (5,290,200)  (3,584,300)  (8,299,300)    693,400   (1,922,200)
                         -----------  -----------  -----------  ----------  -----------
Cash flows from
 financing activities:
 Proceeds from debt.....     800,000          --     4,200,000   1,000,000          --
 Proceeds from issuance
  of stock..............       5,000       46,600      135,300     120,300       21,900
 Purchase of treasury
  stock.................         --           --    (1,000,000) (1,000,000)         --
 Retirement of debt.....    (899,300)    (636,300)  (1,380,000)   (800,000)  (1,625,000)
                         -----------  -----------  -----------  ----------  -----------
    Net cash (used in)
     provided by
     financing
     activities.........     (94,300)    (589,700)   1,955,300    (679,700)  (1,603,100)
                         -----------  -----------  -----------  ----------  -----------
Net (decrease) increase
 in cash and
 cash equivalents.......  (1,672,000)   1,146,800   10,561,800  (4,884,300) (12,153,800)
Cash and cash
 equivalents, beginning
 of year................  10,578,800    8,906,800   10,053,600  10,053,600   20,615,400
                         -----------  -----------  -----------  ----------  -----------
Cash and cash
 equivalents, end of
 year................... $ 8,906,800  $10,053,600  $20,615,400  $5,169,300  $ 8,461,600
                         ===========  ===========  ===========  ==========  ===========
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-6
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
Principles of Consolidation
 
  The accompanying consolidated financial statements include the accounts of
Petroleum Development Corporation and its wholly owned subsidiaries. All
material intercompany accounts and transactions have been eliminated in
consolidation. The Company accounts for its investment in limited partnerships
under the proportionate consolidation method. Under this method, the Company's
financial statements include its prorata share of assets and liabilities and
revenues and expenses, respectively, of the limited partnerships in which it
participates.
 
  The Company is involved in two business segements. The different segments
are oil and gas well drilling, production and related property management and
marketing and pipeline operations.
 
  The Company grants credit to purchasers of oil and gas and the owners of
managed properties, substantially all of whom are located in the Appalachian
Basin area of West Virginia, Tennessee, Pennsylvania and Ohio.
 
Cash Equivalents
 
  For purposes of the statement of cash flows, the Company considers all
highly liquid debt instruments with original maturities of three months or
less to be cash equivalents.
 
Inventories
 
  Inventories of well equipment, parts and supplies are valued at the lower of
average cost or market. An inventory of natural gas is recorded when gas is
purchased in excess of deliveries to customers and is recorded at the lower of
cost or market.
 
Oil and Gas Properties
 
  Exploration and development costs are accounted for by the successful
efforts method.
 
  The Company assesses impairment of capitalized costs of proved oil and gas
properties by comparing net capitalized costs to undiscounted future net cash
flows on a field-by-field basis using expected prices. Prices utilized for
measurement purposes and expected costs are held constant. If net capitalized
costs exceed undiscounted future net cash flow, the measurement of impairment
is based on estimated fair value which would consider future discounted cash
flows.
 
  Property acquisition costs are capitalized when incurred. Geological and
geophysical costs and delay rentals are expensed as incurred. The costs of
drilling exploratory wells are capitalized pending determination of whether
the wells have discovered economically producible reserves. If reserves are
not discovered, such costs are expensed as dry holes. Development costs,
including equipment and intangible drilling costs related to both producing
wells and developmental dry holes, are capitalized.
 
  Unproved properties are assessed on a property-by-property basis and
properties considered to be impaired are charged to expense when such
impairment is deemed to have occurred.
 
  Costs of proved properties, including leasehold acquisition, exploration and
development costs and equipment, are depreciated or depleted by the unit-of-
production method based on estimated proved developed oil and gas reserves.
 
 
                                      F-7
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

  Upon sale or retirement of complete units of depreciable or depletable
property, the net cost thereof, less proceeds or salvage value, is credited or
charged to income. Upon retirement of a partial unit of property, the cost
thereof is charged to accumulated depreciation and depletion.
 
  Based on the Company's experience, management believes site restoration,
dismantlement and abandonment costs net of salvage to be immaterial in
relation to operating costs. These costs are being expensed when incurred.
 
Transportation Equipment, Pipelines and Other Equipment
 
  Transportation equipment, pipelines and other equipment are carried at cost.
Depreciation is provided principally on the straight-line method over useful
lives of 3 to 17 years.
 
  Maintenance and repairs are charged to expense as incurred. Major renewals
and betterments are capitalized. Upon the sale or other disposition of assets,
the cost and related accumulated depreciation, depletion and amortization are
removed from the accounts, the proceeds applied thereto and any resulting gain
or loss is reflected in income.
 
Buildings
 
  Buildings are carried at cost and depreciated on the straight-line method
over estimated useful lives of 30 years.
 
Retirement Plans
 
  The Company has a 401(k) contributory retirement plan (401(k) Plan) covering
full-time employees. The Company provides a discretionary matching of employee
contributions to the plan.
 
  The Company also has a profit sharing plan covering full-time employees. The
Company's contributions to this plan are discretionary.
 
  During 1994, the Company established a deferred compensation arrangement
covering executive officers of the Company as a supplemental retirement
benefit.
 
  During 1995, the Company established split-dollar life insurance
arrangements with certain executive officers. Under these arrangements,
advances are made to these officers equal to the premiums due. The advances
are collateralized by the cash surrender value of the policies. The Company
records as other assets its share of the cash surrender value of the policies.
 
Revenue Recognition
 
  Oil and gas wells are drilled primarily on a contract basis. The Company
follows the percentage-of-completion method of income recognition for drilling
operations in progress.
 
  Well operations income consists of operation charges for well upkeep,
maintenance and operating lease income on tangible well equipment.
 
Income Taxes
 
  Deferred tax assets and liabilities are recognized for the future tax
consequences attributable to differences between the financial statement
carrying amounts of existing assets and liabilities and their respective tax
bases. Deferred tax assets and liabilities are measured using enacted tax
rates expected to apply to taxable income in
 
                                      F-8
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

the years in which those temporary differences are expected to be recovered or
settled. The effect on deferred tax assets and liabilities of a change in tax
rates is recognized in income in the period that includes the enactment date.
 
Derivatives
 
  Gains and losses related to qualifying hedges of firm commitments or
anticipated transactions through the use of natural gas futures contracts are
deferred and recognized in income or as adjustments of carrying amounts when
the underlying hedged transaction occurs. In order for futures contracts to
qualify as a hedge, there must be sufficient correlation to the underlying
hedged transaction. The change in the fair value of derivative instruments
which do not qualify for hedging are recognized into income currently.
 
Stock Compensation
 
  On January 1, 1996, the Company adopted SFAS No. 123, "Accounting for Stock-
Based Compensation," which permits entities to recognize as expense over the
vesting period the fair value of all stock-based awards on the date of grant.
Alternatively, SFAS 123 allows entities to continue to measure compensation
cost for stock-based awards using the intrinsic value based method of
accounting prescribed by APB Opinion No. 25, "Accounting for Stock Issued to
Employees," and to provide pro forma net income and pro forma earnings per
share disclosures as if the fair value based method defined in SFAS 123 had
been applied. The Company has elected to continue to apply the provisions of
APB 25 and provide the pro forma disclosure provisions of SFAS 123. See note 5
to the financial statements.
 
Use of Estimates
 
  Management of the Company has made a number of estimates and assumptions
relating to the reporting of assets and liabilities and revenues and expenses
and the disclosure of contingent assets and liabilities to prepare these
financial statements in conformity with generally accepted accounting
principles. Actual results could differ from those estimates. Estimates which
are particularly significant to the consolidated financial statements include
estimates of oil and gas reserves and future cash flows from oil and gas
properties.
 
(2) NOTES AND ACCOUNTS RECEIVABLE
 
  The Company held notes receivable from officers, directors and employees
with interest from 8% to 12% as of December 31, 1995 in the amount of $33,300
of which $200 is current.
 
  Included in other assets are noncurrent notes and accounts receivable as of
December 31, 1995 and 1996, in the amounts of $168,400 and $5,930, net of the
allowance for doubtful accounts of $368,800 and $147,200, respectively.
 
  The allowance for doubtful current accounts receivable as of December 31,
1995 and 1996 was $20,200 and $140,600, respectively.
 
(3) LONG-TERM DEBT
 
  The Company is party to a bank credit agreement dated November 17, 1993
which, as amended, provides a borrowing base of $10,000,000 subject to
adequate natural gas reserve levels. At the request of the Company, the bank,
at its sole discretion, may increase the amount of the commitment to
$20,000,000. The Company has activated $7.5 million of the facility.
 
  As of December 31, 1995 and 1996, the balance outstanding was $2,500,000 and
$5,320,000, respectively. No principal payments are required under the credit
agreement until maturity on December 31, 1999. Interest
 
                                      F-9
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

accrues at prime with LIBOR (London Interbank Market) rate alternatives
available at the discretion of the Company. At December 31, 1996, interest
accrues at prime (8 1/4%) plus 1/4%. The Company is required to pay a
commitment fee of 1/8% to 1/4% on the unused portion of the credit facility.
The loan is secured by substantially all properties of the Company. The credit
agreement requires, among other things, the existence of satisfactory levels
of natural gas reserves, maintenance of certain working capital and tangible
net worth ratios along with a restriction on the payment of dividends.
 
(4) INCOME TAXES
 
  The Company's provision for income taxes consisted of the following:
 
<TABLE>
<CAPTION>
                                                     1994     1995      1996
                                                   -------- -------- ----------
<S>                                                <C>      <C>      <C>
Current:
  Federal......................................... $ 66,600 $128,400 $  545,600
  State...........................................   12,700  109,900    341,100
                                                   -------- -------- ----------
    Total current income taxes....................   79,300  238,300    886,700
                                                   -------- -------- ----------
Deferred:
  Federal.........................................   75,500   87,300    165,800
  State...........................................   21,900   25,300     48,100
                                                   -------- -------- ----------
    Total deferred income taxes...................   97,400  112,600    213,900
                                                   -------- -------- ----------
    Total taxes................................... $176,700 $350,900 $1,100,600
                                                   ======== ======== ==========
</TABLE>
 
  Income tax expense attributable to income from continuing operations was
$176,700, $350,900 and $1,100,600 for the years ended December 31, 1994, 1995
and 1996, respectively, and differed from the amounts computed by applying the
U.S. federal income tax rate of 34 percent to pretax income from continuing
operations as a result of the following:
 
<TABLE>
<CAPTION>
                                                  1994       1995       1996
                                                ---------  --------  ----------
                                                 AMOUNT     AMOUNT     AMOUNT
                                                ---------  --------  ----------
<S>                                             <C>        <C>       <C>
Computed "expected" tax........................ $ 373,400  $623,000  $1,581,000
State income tax...............................    71,200   108,800     249,900
Percentage depletion...........................  (136,000) (155,900)   (205,800)
Nonconventional source fuel credit.............   (18,000) (127,300)   (510,500)
Adjustment to oil and gas properties...........  (132,700)       --          --
Adjustments to valuation allowance.............        --  (100,700)         --
Other..........................................    18,800     3,000     (14,000)
                                                ---------  --------  ----------
                                                $ 176,700  $350,900  $1,100,600
                                                =========  ========  ==========
</TABLE>
 
 
                                     F-10
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

  The tax effects of temporary differences that give rise to significant
portions of the deferred tax assets and deferred tax liabilities at December
31, 1995 and 1996 are presented below:
 
<TABLE>
<CAPTION>
                                                         1995         1996
                                                      -----------  -----------
<S>                                                   <C>          <C>
Deferred tax assets:
  Drilling notes, principally due to allowance for
   doubtful accounts................................. $   671,300  $   465,800
  Investment tax credit carryforwards................     233,300       45,200
  Alternative minimum tax credit carryforwards
   (Section 29)......................................     909,400      926,600
  Other..............................................     440,600      550,800
                                                      -----------  -----------
    Total gross deferred tax assets..................   2,254,600    1,988,400
    Less valuation allowance.........................    (941,300)    (926,600)
                                                      -----------  -----------
    Deferred tax assets..............................   1,313,300    1,061,800
    Less current deferred tax assets (included in
     prepaid expenses)...............................    (386,200)    (376,100)
                                                      -----------  -----------
Net non-current deferred tax assets..................     927,100      685,700
Deferred tax liabilities:
  Plant and equipment, principally due to differences
   in depreciation
   and amortization..................................  (3,848,000)  (3,826,500)
                                                      -----------  -----------
    Total gross deferred tax liabilities.............  (3,848,000)  (3,826,500)
                                                      -----------  -----------
    Net deferred tax liability....................... $(2,920,900) $(3,140,800)
                                                      ===========  ===========
</TABLE>
 
  The Company has evaluated each deferred tax asset and has provided a
valuation allowance where it is believed it is more likely than not that some
portion of the asset will not be realized.
 
  The net changes in the total valuation allowance were for the years ended
December 31, 1994 and 1995, an increase of $45,000 and $98,600, respectively,
and for the year ended December 31, 1996 a decrease of $14,700.
 
  At December 31, 1996, the Company has investment tax credit carryforwards
for federal income tax purposes of approximately $45,200 which are available
to reduce future federal income taxes through 2000. In addition, the Company
has alternative minimum tax credit carryforwards (Section 29) of approximately
$926,600 which are available to reduce future federal regular income taxes
over an indefinite period.
 
(5) COMMON STOCK
 
Options
 
  Options amounting to 210,000 shares were granted during 1995 to certain
employees and directors under the Company's Stock Option Plans. These options
were granted at market value as of the date of grant and vest over a two year
period. The outstanding options expire from 1997 to 2005.
 
  The estimated fair value of the options granted during 1995 was $0.67 per
option. The fair value was estimated using the Black-Scholes option pricing
model with the following assumptions: risk-free interest rate of 5.8%,
expected dividend yield of 0%, expected volatility of 51% and expected life of
7 years.
 
                                     F-11
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996
<TABLE>
<CAPTION>
                                                  NUMBER
                                                 OF SHARES  AVERAGE    RANGE
                                                 ---------  ------- -----------
<S>                                              <C>        <C>     <C>
Outstanding December 31, 1993................... 2,182,250   $0.71  $ 0.38-1.63
Granted.........................................        --      --           --
Exercised.......................................  (226,250)   0.50    0.44-0.69
Expired.........................................        --      --           --
                                                 ---------   =====  -----------
Outstanding December 31, 1994................... 1,956,000    0.77    0.38-1.63
Granted.........................................   210,000    1.13    1.13-1.13
Exercised.......................................   (78,000)   0.60    0.56-0.72
Expired.........................................  (235,350)   0.68    0.38-1.63
                                                 ---------   -----  -----------
Outstanding December 31, 1995................... 1,852,650    0.91    0.50-1.63
Granted.........................................        --      --           --
Exercised.......................................  (230,000)   0.72   0.50-1.125
Expired.........................................   (40,000)   0.80   0.50-1.625
                                                 ---------   -----  -----------
Outstanding December 31, 1996................... 1,582,650   $0.94  $0.50-1.625
                                                 =========   =====  ===========
</TABLE>
 
  The Company accounts for its stock-based compensation plans under APB 25.
For stock options granted, the option price was not less than the market value
of shares on the grant date, therefore, no compensation cost has been
recognized. Had compensation cost been determined under the provisions of SFAS
123, the Company's net income and earnings per share would have been the
following on a pro forma basis:
 
<TABLE>
<CAPTION>
                                            1995                   1996
                                   ---------------------- ----------------------
                                   AS REPORTED PRO FORMA  AS REPORTED PRO FORMA
                                   ----------- ---------- ----------- ----------
<S>                                <C>         <C>        <C>         <C>
Net income........................ $1,481,500  $1,474,400 $3,549,400  $3,473,250
                                   ==========  ========== ==========  ==========
Earnings per share................ $     0.13  $     0.13 $     0.31  $     0.30
                                   ==========  ========== ==========  ==========
</TABLE>
 
Stock Redemption Agreement
 
  The Company has stock redemption agreements with three officers of the
Company. The agreements require the Company to maintain life insurance on each
executive in the amount of $1,000,000. The agreements provide that the Company
shall utilize the proceeds from such insurance to purchase from such
executives' estates or heirs, at their option, shares of the Company's stock.
The purchase price for the outstanding common stock is to be based upon the
average closing asked price for the Company's stock as quoted by Nasdaq
National Market during a specified period. The Company is not required to
purchase any shares in excess of the amount provided for by such insurance.
 
Stock Purchase
 
  On January 31, 1996, the Company purchased 1,200,000 shares of its common
stock pursuant to an option agreement. The option was obtained in connection
with a debt restructuring in 1990. The company utilized its revolving credit
line to acquire the shares for $1,000,000 or $0.83 a share. The shares
representing approximately 11% of the currently outstanding stock were retired
by the Company.
 
 
                                     F-12
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

(6) EMPLOYEE BENEFIT PLANS
 
  The Company made 401(k) Plan contributions of $68,700, $71,800 and $139,800
for 1994, 1995 and 1996, respectively.
 
  The Company has a profit sharing plan (the Plan) covering full-time
employees. The Company contributed $28,500 and $50,000 to the plan in cash
during 1995 and 1996, respectively. The Company did not make a contribution to
the Plan during 1994.
 
  During 1995 and 1996, the Company expensed and established a liability for
$90,000 each year under a deferred compensation arrangement with the executive
officers of the Company.
 
  In 1995, a total of 90,000 restricted shares of the Company's common stock
were granted to certain employees and available to them upon retirement. The
market value of shares awarded was $101,300. This amount was recorded as
unamortized stock award and is shown as a separate component of stockholders'
equity. The unamortized stock award is being amortized to expense over the
employees' expected years to retirement and amounted to $12,200 in 1995 and
1996.
 
  At December 31, 1995 and 1996, the Company has recorded as other assets
$60,000 and $111,800, respectively as its share of the cash surrender value of
the life insurance pledged as collateral for the payment of premiums on split-
dollar life insurance policies owned by certain executive officers.
 
(7) EARNINGS PER SHARE
 
  Earnings per share is based on the weighted average number of common and
common equivalent shares outstanding of 11,990,497 for 1994, 11,606,690 for
1995 and 11,573,429 for 1996. Stock options are considered to be common stock
equivalents and, to the extent appropriate, have been added to the weighted
average common shares outstanding. Fully diluted earnings per share have not
been presented as the inclusion of such additional shares would not create
significant dilution.
 
(8) TRANSACTIONS WITH AFFILIATES
 
  As part of its duties as well operator, the Company received $12,834,300 in
1994, $11,397,000 in 1995 and $18,234,200 in 1996 representing proceeds from
the sale of oil and gas and made distributions to investor groups according to
their working interests in the related oil and gas properties. The Company
provided oil and gas well drilling services to affiliated partnerships,
substantially all of the Company's oil and gas well drilling operations was
for such partnerships. The Company also provided related services of operation
of wells, reimbursement of syndication costs, management fees, tax return
preparation and other services relating to the operation of the partnerships.
The Company received $4,041,600 in 1994, $4,003,500 in 1995 and $6,435,700 in
1996 for those services. During 1994, 1995 and 1996, the Company paid
$127,900, $38,500 and $35,400, respectively to the Corporate Secretary's law
firm for various legal services.
 
(9) COMMITMENTS AND CONTINGENCIES
 
  The nature of the independent oil and gas industry involves a dependence on
outside investor drilling capital and involves a concentration of gas sales to
a few customers. The Company sells natural gas to various public utilities and
industrial customers. One customer, Hope Gas Inc., a regulated public utility,
accounted for 16.1% of total revenues in 1996.
 
  The Company is not party to any legal action that would materially affect
the Company's operations or financial statements.
 
                                     F-13
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996
 
(10) SUPPLEMENTAL DISCLOSURE OF CASH FLOWS
 
  The Company paid $300,200, $319,700 and $380,000 for interest in 1994, 1995
and 1996, respectively. The Company paid income taxes in 1994 and 1996 in the
amounts of $312,500 and $664,300, respectively.
 
(11) NONCASH FINANCING AND INVESTING ACTIVITIES
 
  In 1994 the Company issued 55,000 shares of common stock for the purchase of
producing properties. Also in 1994, employees exercised stock options for
143,706 shares of common stock and surrendered options for 72,544 common
shares in lieu of cash payments in connection with the options exercised. This
resulted in compensation expense of $108,200.
 
(12) ACQUISITIONS
 
  On April 1, 1996, the Company acquired Riley Natural Gas Company (RNG), a
privately held gas marketing company in a stock for stock exchange accounted
for as a purchase. The acquisition has substantially increased the Company's
capabilities in the natural gas marketing area. PDC issued 236,094 shares with
a market value of $449,100, for 100% of the outstanding common stock of RNG.
Key employees of RNG have entered into employment contracts with PDC to assure
the continuity of RNG's gas marketing operations.
 
  The following unaudited pro forma information presents the results of
operations of the Company assuming the RNG acquisition occurred at the
beginning of 1995:
 
 Proforma Results (unaudited):
<TABLE>
<CAPTION>
                                                            1995        1996
                                                         ----------- -----------
<S>                                                      <C>         <C>
Revenues................................................ $35,361,800 $53,091,400
                                                         =========== ===========
Net income.............................................. $ 1,546,900 $ 3,592,800
                                                         =========== ===========
Earnings per share...................................... $      0.13 $      0.31
                                                         =========== ===========
</TABLE>
 
  The pro forma results are presented for informational purposes only and are
not necessarily indicative of results that would have occurred had the RNG
acquisition been consummated at the beginning of 1995.
 
  On August 6, 1996 the Company purchased an interest in 188 oil and gas wells
in West Virginia. The Company utilized its revolving credit line to finance
the purchase. The purchase increased the Company's oil and gas reserves by 4.3
Bcf of natural gas and 27,000 barrels of oil, added 12,000 acres of leases to
its leasehold inventory and increased the Company's gathering systems by
forty-nine miles. The purchase price was $3.3 million.
 
(13) DERIVATIVES AND HEDGING ACTIVITIES
 
  The Company utilizes commodity based derivative instruments as hedges to
manage a portion of its exposure to price volatility stemming from its
integrated natural gas production and marketing activities. These instruments
consist of natural gas futures contracts traded on the New York Mercantile
Exchange. The futures contracts hedge committed and anticipated natural gas
purchases and sales, generally forecasted to occur within a 12 month period.
The Company does not hold or issue derivatives for trading or speculative
purposes.
 
  As of December 31, 1996, the Company had futures contracts for the sale of
$3,869,900 of natural gas maturing in 1997. While these contracts have nominal
carrying value, their fair value, represented by the estimated amount that
would be received upon termination of the contracts, based on market quotes,
was a net value of $217,770 at December 31, 1996.
 
                                     F-14
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996
 
  The Company is required to maintain margin deposits with brokers for
outstanding futures contracts. As of December 31, 1996, cash in the amount of
$1,734,900 was on deposit.
 
(14) COSTS INCURRED IN OIL AND GAS PROPERTY ACQUISITION, EXPLORATION AND
DEVELOPMENT ACTIVITIES
 
  Costs incurred by the Company in oil and gas property acquisition,
exploration and development are presented below:
 
<TABLE>
<CAPTION>
                                                   YEARS ENDED DECEMBER 31,
                                               --------------------------------
                                                  1994       1995       1996
                                               ---------- ---------- ----------
<S>                                            <C>        <C>        <C>
Property acquisition cost:
  Proved undeveloped properties............... $  426,200 $  167,800 $  543,600
  Producing properties........................  1,332,100    218,500  3,211,800
  Development costs...........................  2,260,800  2,977,700  5,344,900
                                               ---------- ---------- ----------
                                               $4,019,100 $3,364,000 $9,100,300
                                               ========== ========== ==========
</TABLE>
 
  Property acquisition costs include costs incurred to purchase, lease or
otherwise acquire a property. Exploration costs include the cost of geological
and geophysical activity, dry holes and drilling and equipping exploratory
wells. Development costs include costs incurred to gain access to and prepare
development well locations for drilling, to drill and equip development wells
and to provide facilities to extract, treat, gather and store oil and gas.
 
(15) OIL AND GAS CAPITALIZED COSTS
 
  Aggregate capitalized costs for the Company related to oil and gas
exploration and production activities with applicable accumulated
depreciation, depletion and amortization are presented below:
 
<TABLE>
<CAPTION>
                                                             DECEMBER 31,
                                                        -----------------------
                                                           1995        1996
                                                        ----------- -----------
<S>                                                     <C>         <C>
Proved properties:
  Intangible drilling costs............................ $16,582,000 $19,572,400
  Tangible well equipment..............................  16,831,800  21,999,600
  Well equipment leased to others......................   4,063,600   4,063,600
  Undeveloped properties...............................     514,600     890,100
                                                        ----------- -----------
                                                         37,992,000  46,525,700
    Less accumulated depreciation, depletion and
     amortization......................................  14,529,900  15,837,800
                                                        ----------- -----------
                                                        $23,462,100 $30,687,800
                                                        =========== ===========
</TABLE>
 
 
                                     F-15
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

(16) RESULTS OF OPERATIONS FOR OIL AND GAS PRODUCING ACTIVITIES
 
  The results of operations for oil and gas producing activities (excluding
marketing) are presented below:
 
<TABLE>
<CAPTION>
                                                   YEARS ENDED DECEMBER 31,
                                               --------------------------------
                                                  1994       1995       1996
                                               ---------- ---------- ----------
<S>                                            <C>        <C>        <C>
Revenue:
  Oil and gas sales........................... $2,610,100 $2,534,000 $4,674,900
Expenses:
  Production costs............................    734,700    596,000    963,600
  Depreciation, depletion and amortization....    922,300  1,000,700  1,248,200
                                               ---------- ---------- ----------
                                                1,657,000  1,596,700  2,211,800
                                               ---------- ---------- ----------
  Results of operations for oil and gas
   producing activities before provision for
   income taxes...............................    953,100    937,300  2,463,100
Provision for income taxes....................    146,600    137,800    519,600
                                               ---------- ---------- ----------
  Results of operations for oil and gas
   producing activities
   (excluding corporate over-head and interest
   costs)..................................... $  806,500 $  799,500 $1,943,500
                                               ========== ========== ==========
</TABLE>
 
  Production costs include those costs incurred to operate and maintain
productive wells and related equipment, including such costs as labor,
repairs, maintenance, materials, supplies, fuel consumed, insurance and other
production taxes. In addition, production costs include administrative
expenses and depreciation applicable to support equipment associated with
these activities.
 
  Depreciation, depletion and amortization expense includes those costs
associated with capitalized acquisition, exploration and development costs,
but does not include the depreciation applicable to support equipment.
 
  The provision for income taxes is computed at the statutory federal income
tax rate and is reduced to the extent of permanent differences, such as
investment tax and non-conventional source fuel tax credits and statutory
depletion allowed for income tax purposes.
 
 
                                     F-16
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

(17) NET PROVED OIL AND GAS RESERVES (UNAUDITED)
 
  The proved reserves of oil and gas of the Company as estimated by the
Company's petroleum engineers at December 31, 1994 and 1995 and by an
independent petroleum engineer, Wright & Company, Inc., at December 31, 1996.
These reserves have been prepared in compliance with the Securities and
Exchange Commission rules based on year end prices. Since December 31, 1996
prices have declined to seasonal levels. An analysis of the change in
estimated quantities of oil and gas reserves, all of which are located within
the United States, is shown below:
 
<TABLE>
<CAPTION>
                                                       OIL (BBLS)
                                            ----------------------------------
                                               1994        1995        1996
                                            ----------  ----------  ----------
<S>                                         <C>         <C>         <C>
Proved developed and undeveloped reserves:
  Beginning of year........................     91,000      79,000     140,000
  Revisions of previous estimates..........     (1,000)     72,000     (30,000)
                                            ----------  ----------  ----------
  Beginning of year as revised.............     90,000     151,000     110,000
  Dispositions.............................         --          --     (49,000)
  Acquisitions.............................         --          --      27,000
  Production...............................    (11,000)    (11,000)     (7,000)
                                            ----------  ----------  ----------
  End of year..............................     79,000     140,000      81,000
                                            ==========  ==========  ==========
Proved developed reserves:
  Beginning of year........................     91,000      79,000     140,000
                                            ==========  ==========  ==========
  End of year..............................     79,000     140,000      81,000
                                            ==========  ==========  ==========
<CAPTION>
                                                       GAS (MCF)
                                            ----------------------------------
                                               1994        1995        1996
                                            ----------  ----------  ----------
<S>                                         <C>         <C>         <C>
Proved developed and undeveloped reserves:
  Beginning of year........................ 24,660,000  32,225,000  33,829,000
  Revisions of previous estimates..........  4,472,000     686,000  (1,037,000)
                                            ----------  ----------  ----------
  Beginning of year as revised............. 29,132,000  32,911,000  32,792,000
  New discoveries and extensions...........  2,345,000   2,119,000   2,613,000
  Disposition..............................         --          --    (127,000)
  Acquisitions.............................  1,943,000     135,000   9,529,000
  Production............................... (1,195,000) (1,336,000) (1,495,000)
                                            ----------  ----------  ----------
  End of year.............................. 32,225,000  33,829,000  43,312,000
                                            ==========  ==========  ==========
Proved developed reserves:
  Beginning of year........................ 20,181,000  27,746,000  29,326,000
                                            ==========  ==========  ==========
  End of year.............................. 27,746,000  29,326,000  35,516,000
                                            ==========  ==========  ==========
</TABLE>
 
(18) STANDARDIZED MEASURE OF DISCOUNTED FUTURE NET CASH FLOWS AND CHANGES
    THEREIN RELATING TO PROVED OIL AND GAS RESERVES (UNAUDITED)
 
  Summarized in the following table is information for the Company with
respect to the standardized measure of discounted future net cash flows
relating to proved oil and gas reserves. Future cash inflows are derived by
applying current oil and gas prices to estimated future production. Future
production, development, site restoration and abandonment costs are derived
based on current costs assuming continuation of existing economic conditions.
Future income tax expenses are computed by applying the statutory rate in
effect at the
 
                                     F-17
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

end of each year to the future pretax net cash flows, less the tax basis of
the properties and gives effect to permanent differences, tax credits and
allowances related to the properties.
 
<TABLE>
<CAPTION>
                                             YEARS ENDED DECEMBER 31,
                                      ----------------------------------------
                                          1994          1995          1996
                                      ------------  ------------  ------------
<S>                                   <C>           <C>           <C>
Future estimated cash flows.......... $ 73,316,000  $ 99,478,000  $193,800,000
Future estimated production and
 development costs...................  (24,370,000)  (29,288,000)  (59,806,000)
Future estimated income tax expense..  (13,950,000)  (20,004,000)  (33,499,000)
                                      ------------  ------------  ------------
  Future net cash flows..............   34,996,000    50,186,000   100,495,000
10% annual discount for estimated
 timing of cash flows................  (20,551,000)  (29,126,000)  (66,233,000)
                                      ------------  ------------  ------------
  Standardized measure of discounted
   future estimated
   net cash flows.................... $ 14,445,000  $ 21,060,000  $ 34,262,000
                                      ============  ============  ============
</TABLE>
 
  The following table summarizes the principal sources of change in the
standardized measure of discounted future estimated net cash flows:
 
<TABLE>
<CAPTION>
                                               YEARS ENDED DECEMBER 31,
                                         --------------------------------------
                                            1994         1995          1996
                                         -----------  -----------  ------------
<S>                                      <C>          <C>          <C>
Sales of oil and gas production, net of
 production costs......................  $(1,875,000) $(1,938,000) $ (3,711,000)
Net changes in prices and production
 costs.................................   (9,560,000)  17,024,000    42,384,000
Extensions, discoveries and improved
 recovery, less related cost...........    3,875,000    4,609,000     9,659,000
Acquisitions...........................    2,745,000      294,000    17,775,000
Development costs incurred during the
 period................................    2,261,000    2,978,000     5,345,000
Revisions of previous quantity
 estimates.............................    8,222,000    1,700,000    (2,902,000)
Changes in estimated income taxes......     (882,000)  (6,054,000)  (13,495,000)
Accretion of discount..................   (1,785,000)  (8,575,000)  (37,107,000)
Other..................................   (2,574,000)  (3,423,000)   (4,746,000)
                                         -----------  -----------  ------------
                                         $   427,000  $ 6,615,000  $ 13,202,000
                                         ===========  ===========  ============
</TABLE>
 
  It is necessary to emphasize that the data presented should not be viewed as
representing the expected cash flow from, or current value of, existing proved
reserves since the computations are based on a large number of estimates and
arbitrary assumptions. Reserve quantities cannot be measured with precision
and their estimation requires many judgmental determinations and frequent
revisions. The required projection of production and related expenditures over
time requires further estimates with respect to pipeline availability, rates
of demand and governmental control. Actual future prices and costs are likely
to be substantially different from the current prices and costs utilized in
the computation of reported amounts. Any analysis or evaluation of the
reported amounts should give specific recognition to the computational methods
utilized and the limitations inherent therein.
 
 
                                     F-18
<PAGE>
 
              PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                 YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

(19) BUSINESS SEGMENTS
 
Information on the Company's operations by business segment are as follows for
the years ended December 31:
 
<TABLE>
<CAPTION>
                                              1994         1995        1996
                                           ----------- ------------ -----------
<S>                                        <C>         <C>          <C>
Revenues:
  Drilling and production................. $21,250,800 $ 20,360,100 $27,940,200
  Marketing and pipeline..................   2,031,000    1,482,400  20,737,900
                                           ----------- ------------ -----------
                                           $23,281,800 $ 21,842,500 $48,678,100
                                           =========== ============ ===========
Operating profit:
  Drilling and production................. $ 3,302,800 $  3,714,300 $ 6,207,000
  Marketing and pipeline..................   (224,900)    (105,600)     191,400
                                           ----------- ------------ -----------
                                             3,077,900    3,608,700   6,398,400
                                           ----------- ------------ -----------
  General and administrative expense...... (2,203,800)  (1,960,600) (2,304,000)
  Interest expense........................   (300,200)    (319,700)   (380,000)
  Interest income and other...............     524,400      504,000     935,600
                                           ----------- ------------ -----------
Income before income taxes................ $ 1,098,300 $  1,832,400 $ 4,650,000
                                           =========== ============ ===========
Depreciation, depletion and amortization:
  Drilling and production................. $ 1,696,800 $  2,008,000 $ 2,153,900
  Marketing and pipeline..................     151,400      144,100     155,700
                                           ----------- ------------ -----------
                                           $ 1,848,200 $  2,152,100 $ 2,309,600
                                           =========== ============ ===========
Identifiable assets:
  Drilling and production................. $36,381,000 $ 39,016,000 $54,847,000
  Marketing and pipeline..................   1,383,600    1,067,700   8,005,100
  Corporate...............................     560,700      536,400     752,100
                                           ----------- ------------ -----------
                                           $38,325,300 $ 40,620,100 $63,604,200
                                           =========== ============ ===========
Capital expenditures:
  Drilling and production................. $ 5,478,000 $  3,817,700 $10,059,900
  Marketing and pipeline..................     112,200       86,900     124,200
  Corporate...............................      16,300        5,800     231,400
                                           ----------- ------------ -----------
                                           $ 5,606,500 $  3,910,400 $10,415,500
                                           =========== ============ ===========
</TABLE>
 
 
                                     F-19
<PAGE>
 
               PETROLEUM DEVELOPMENT CORPORATION AND SUBSIDIARIES
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
                  YEARS ENDED DECEMBER 31, 1994, 1995 AND 1996

(20) QUARTERLY FINANCIAL DATA (UNAUDITED)
 
  Summarized quarterly financial data for the years ended December 31, 1995 and
1996, are as follows:
 
<TABLE>
<CAPTION>
                                                    1995
                         -----------------------------------------------------------
                                             QUARTER                        YEAR
                         ----------------------------------------------- -----------
                            FIRST      SECOND       THIRD      FOURTH
                         ----------- ----------- ----------- -----------
<S>                      <C>         <C>         <C>         <C>         <C>
Revenues................ $ 9,537,000 $ 4,432,800 $ 3,582,500 $ 4,794,200 $22,346,500
Cost of operations......   8,034,500   3,621,700   2,764,500   3,813,100  18,233,800
                         ----------- ----------- ----------- ----------- -----------
  Gross profit..........   1,502,500     811,100     818,000     981,100   4,112,700
General and
 administrative
 expenses...............     450,300     520,900     600,700     388,700   1,960,600
Interest expense........      83,400      76,300      71,000      89,000     319,700
                         ----------- ----------- ----------- ----------- -----------
                             533,700     597,200     671,700     477,700   2,280,300
                         ----------- ----------- ----------- ----------- -----------
Income before income
 taxes..................     968,800     213,900     146,300     503,400   1,832,400
Income taxes............     240,300      53,000      36,300      21,300     350,900
                         ----------- ----------- ----------- ----------- -----------
  Net income............ $   728,500 $   160,900 $   110,000 $   482,100 $ 1,481,500
                         =========== =========== =========== =========== ===========
  Primary earnings per
   share................ $      0.06 $      0.02 $      0.01 $      0.04 $      0.13
                         =========== =========== =========== =========== ===========
<CAPTION>
                                                    1996
                         -----------------------------------------------------------
                                             QUARTER                        YEAR
                         ----------------------------------------------- -----------
                            FIRST     SECOND(1)   THIRD(1)    FOURTH(1)
                         ----------- ----------- ----------- -----------
<S>                      <C>         <C>         <C>         <C>         <C>
Revenues................ $11,441,300 $10,333,700 $11,317,000 $16,521,700 $49,613,700
Cost of operations......   9,203,000   8,858,900   9,996,500  14,221,300  42,279,700
                         ----------- ----------- ----------- ----------- -----------
  Gross profit..........   2,238,300   1,474,800   1,320,500   2,300,400   7,334,000
General and
 administrative
 expenses...............     541,800     570,100     651,000     541,100   2,304,000
Interest expense........      72,100      67,300     106,400     134,200     380,000
                         ----------- ----------- ----------- ----------- -----------
                             613,900     637,400     757,400     675,300   2,684,000
                         ----------- ----------- ----------- ----------- -----------
Income before income
 taxes..................   1,624,400     837,400     563,100   1,625,100   4,650,000
Income taxes............     344,400     177,500     152,600     426,100   1,100,600
                         ----------- ----------- ----------- ----------- -----------
  Net income............ $ 1,280,000 $   659,900 $   410,500 $ 1,199,000 $ 3,549,400
                         =========== =========== =========== =========== ===========
  Primary earnings per
   share................ $      0.11 $      0.06 $      0.04 $      0.10 $      0.31
                         =========== =========== =========== =========== ===========
</TABLE>
 
  Cost of operations include cost of oil and gas well drilling operations, oil
and gas purchases and production costs and depreciation, depletion and
amortization.
 
(1) These quarters include the operations of Riley Natural Gas Company acquired
    on April 1, 1996, see footnote 12.
 
                                      F-20
<PAGE>
 
                                                                      Appendix A

                     Letterhead of Wright & Company, Inc.

                                         September 19, 1997



Petroleum Development Corporation
103 East Main Street
P. O. Box 26
Bridgeport, WV 26330

ATTENTION:  Mr. Steven R. Williams

     SUBJECT:  SUMMARY REPORT
               Evaluation of Oil and Gas Reserves to the
               Interests of Petroleum Development Corporation
               Effective July 1, 1997
               Pursuant to the Requirements of the
               Securities and Exchange Commission
               Job 7.411

     Wright and Company, Inc. (Wright) has performed an evaluation to estimate
proved reserves and cash flow from certain oil and gas properties to the subject
interest.  This evaluation was authorized by Mr. Steven R. Williams of Petroleum
Development Corporation (PDC).  Projections of the reserves and cash flow to the
evaluated interests were based on economic parameters and operating conditions
considered applicable as of July 1, 1997, and are pursuant to the financial
reporting requirements of the Securities and Exchange Commission.  The results
of the evaluation are presented in detail in the attached summary tables.  The
following is a summary of results effective July 1, 1997:
<TABLE>
<CAPTION>
 
                                                        Proved
                           Proved        Proved        Developed
                          Developed     Developed    Nonproducing      Proved       Total
                          Producing   Nonproducing    Behind Pipe   Undeveloped     Proved
                            (PDP)        (PDNP)        (PDNP-BP)       (PUD)
<S>                      <C>          <C>            <C>            <C>           <C>
Net Reserves to the
  Evaluated Interests
   Oil, MBBL:                41.174          0.000          0.000         0.000       41.174
   Gas, MMCF:            21,107.380      5,044.289     12,088.450     9,092.687   47,332.800
 
Cash Flow (BTAX), M$
  Undiscounted:
  Discounted at 10%      30,891.650      5,132.763     18,370.590     8,994.116   63,389.120
   Per Annum:            15,320.300      2,484.540      2,988.330     2,516.036   23,309.200
</TABLE>


5200 Maryland Way . Suite 100                 2959 Briarpark Drive . Suite 138
Brentwood, Tennessee 37027                    Houston, Texas 77042
(615)370-0755 Fax:(615)370-0756               (713)977-7655 Fax:(713)789-3591

                                      A-1

<PAGE>
 
Mr. Steven R. Williams
Petroleum Development Corporation
September 19, 1997
Page 2


     All data utilized in the preparation of this report with respect to
ownership, well information, and economic parameters, as applicable, were
provided by PDC.  All data have been reviewed for reasonableness and, unless
obvious errors were detected, have been accepted as correct by Wright and
Company without further independent verification.

     Oil and gas reserves were evaluated for the proved developed producing
(PDP), proved developed non producing (PDNP), proved developed nonproducing
behind pipe (PDNP-BP), and proved undeveloped (PUD) reserves categories.   The
attached Definitions of Oil and Gas Reserves describe all categories of proved
reserves.

     The individual projections of lease reserves and economics utilized to
generate these summaries contain certain data that describe the production
forecasts and all associated evaluation parameters, such as interests, severance
and ad valorem taxes, product prices, operating expenses, investments, salvage
values, and abandonments costs, as applicable.

     It should be noted that revisions to the projections of reserves and
economics included in this SUMMARY REPORT may be required if the provided data
are revised for any reason.

     Wright is an independent consulting firm and does not own any interests in
the properties covered by this report.  No employee, officer, or director of
Wright is an employee, office, or director of PDC.  Neither the employment of,
nor the compensation received by Wright, is contingent upon the values assigned
to the properties covered by this report.

     It has been a pleasure to serve you by preparing this evaluation.  All
related data will be retained in our files and are available for your review.

                                         Very truly yours,


                                         /s/ Wright & Company, Inc.
                                         Wright & Company, Inc.


DRW/JDD/jrw
Job 7.411/PDCLT2.doc


                                      A-2
<PAGE>
 
                     DEFINITIONS OF OIL AND GAS RESERVES1

                      PURSUANT TO THE REQUIREMENTS OF THE
                            SECURITIES EXCHANGE ACT

I.    PROVED OIL AND GAS RESERVES

      Proved oil and gas reserves are the estimated quantities of
      crude oil, natural gas, and natural gas liquids which
      geological and engineering data demonstrate with reasonable
      certainty to be recoverable in future years from known
      reservoirs under existing economic and operating conditions,
      i.e., prices and costs as of the date the estimate is made.
      Prices include consideration of changes in existing prices
      provided only by contractual arrangements, but not on
      escalations based upon future conditions.
      A.    Reservoirs are considered proved if economic
            producibility is supported by either actual production
            or conclusive formation test. The area of a reservoir
            considered proved includes:
            1.    that portion delineated by drilling and defined
                  by gas-oil and/or oil-water contacts, if any; and
            2.    the immediately adjoining portions not yet
                  drilled, but which can be reasonably judged as
                  economically productive on the basis of available
                  geological and engineering data. In the absence
                  of information on fluid contacts, the lowest
                  known structural occurrence of hydrocarbons
                  controls the lower proved limit of the reservoir.
      B.    Reserves which can be produced economically through
            application of improved recovery techniques (such as fluid
            injection) are included in the "proved" classification when
            successful testing by a pilot project, or the operation of an
            installed program in the reservoir, provides support for the
            engineering analysis on which the project or program was
            based.

      C.    Estimates of proved reserves do not include the following:

            1.    oil that may become available from known reservoirs but
                  is classified separately as "indicated additional
                  reserves";

            2.    crude oil, natural gas, and natural gas liquids, the
                  recovery of which is subject to reasonable doubt because
                  of uncertainty as to geology, reservoir characteristics,
                  or economic factors:

            3.    crude oil, natural gas, and natural gas liquids, that
                  may occur in undrilled prospects; nor those quantities
                  being held in underground or surface storage.

            4.    crude oil, natural gas, and natural gas liquids, that
                  may be recovered from oil shales, coal and other such
                  sources.
II.   PROVED DEVELOPED OIL AND GAS RESERVES*
      Proved developed oil and gas reserves are reserves that can be
      expected to be recovered through existing wells with existing
      equipment and operating methods. Additional oil and gas
      expected to be obtained through the application of fluid


                                      
<PAGE>
 
      injection or other improved recovery techniques for
      supplementing the natural forces and mechanisms of primary
      recovery should be included as "proved developed reserves"
      only after testing by a pilot project or after the operation
      of an installed program has confirmed through production
      response that increased recovery will be achieved.

III.  PROVED UNDEVELOPED OIL AND GAS RESERVES
      Proved undeveloped oil and gas reserves are reserves that are
      expected to be recovered from new wells on undrilled acreage,
      or from existing wells where a relatively major expenditure is
      required for recompletion. Reserves on undrilled acreage shall
      be limited to those drilling units offsetting productive units
      that are reasonably certain of production when drilled. Proved
      reserves for other undrilled units can be claimed only where
      it can be demonstrated with certainty that there is continuity
      of production from the existing productive formation. Under no
      circumstances should estimates for proved undeveloped reserves
      be attributable to any acreage for which an application of
      fluid injection or other improved recovery technique is
      contemplated, unless such techniques have been proved
      effective by actual tests in the area and in the same
      reservoir.

- ---------------
 1SEC Accounting Rules, Commerce Clearing House, Inc. October 1981,
Paragraph 290, Regulation 210.4-10, p.329. 
 2Wright & Company, Inc. may separate proved developed reserves into
proved developed producing and proved
developed nonproducing reserves. This is to identify proved developed
producing reserves as those to be recovered from actively producing wells.
Proved developed nonproducing reserves are those to be recovered from
wells or intervals within wells, which are completed but shut-in waiting
on equipment or pipeline connections, or wells where a relatively minor
expenditure is required for recompletion to another zone.


                                                  Wright & Company, Inc.
                                                   Petroleum Consultants
                                         

                                      A-3
<PAGE>
 
<TABLE> 
<CAPTION> 

 TOTAL PROVED                                                                                           DATE       : 09/18/97
 PDP, PDNP, PDNP-BP, & PU                                                                               TIME       : 15:04:57
 TO THE INTERESTS OF                                                                                    DBS FILE   : PDC997
 PETROLEUM DEVELOPMENT CORP.                                                                            SETUP FILE : PDC997
                                                                                                        SEQ NUMBER : ******
                                           R E S E R V E S   A N D   E C O N O M I C S
                                           - - - - - - - -   - - -   - - - - - - - - -
 JOB 7.411                                                                                    PURSUANT TO SEC
                                                         AS OF  7/97
 
                                                    ---PRICES---  --------- OPERATIONS M$ --------                         10.0%
 -END-  --GROSS PRODUCTION--  ---NET PRODUCTION---  OIL    GAS     NET OPER   SEV + ADV  NET  OPER  CAPITAL   CASH FLOW  CUM. DISC
 MO-YR  OIL, MBBL  GAS, MMCF  OIL, MBBL  GAS, MMCF  $/B    $/M     REVENUES     TAXES    EXPENSES   COSTS M$  BTAX,  M$  BTAX,  M$
 -----  ---------  ---------  ---------  ---------  -----  -----  ----------  ---------  ---------  --------  ---------  ---------
 <S>    <C>        <C>         <C>       <C>        <C>    <C>     <C>         <C>       <C>        <C>       <C>        <C>      
 12-97      8.305   4109.860      2.852   1012.067  16.00  2.388    2462.399    178.538    456.119  3533.945  (1706.199) (1665.231)
 
 12-98     15.294   8776.428      5.219   2462.081  16.00  2.404    6003.422    440.206   1256.306  3029.642   1277.264   (508.487)
 12-99     13.209   8982.012      4.410   2764.384  16.00  2.414    6744.882    503.322   1491.402   276.770   4473.386   3185.963
 12-00     11.511   8424.032      3.672   2676.639  16.00  2.417    6527.270    489.592   1482.624    64.029   4491.027   6559.202
 12-01      9.349   7817.690      2.760   2512.219  16.00  2.420    6123.513    460.759   1445.235    50.454   4167.063   9405.206
 12-02      8.492   7197.508      2.465   2305.010  16.00  2.423    5623.679    423.477   1396.554    38.026   3765.622  11743.210
 
 12-03      7.621   6650.317      2.194   2087.999  16.00  2.423    5094.206    383.465   1322.520    56.073   3332.147  13623.920
 12-04      6.497   6219.932      1.843   1925.071  16.00  2.422    4691.305    353.175   1279.677    61.428   2997.027  15161.580
 12-05      5.831   5871.442      1.660   1802.269  16.00  2.423    4392.900    330.784   1247.533    89.769   2724.816  16431.890
 12-06      5.287   5508.369      1.497   1680.939  16.00  2.421    4094.262    308.219   1219.341    38.341   2528.361  17504.060
 12-07      4.719   5177.555      1.338   1558.428  16.00  2.421    3794.502    285.604   1174.335    39.715   2294.845  18388.850
 
 12-08      4.284   4923.301      1.223   1464.686  16.00  2.420    3564.794    268.247   1135.537    40.852   2120.155  19131.670
 12-09      3.873   4692.421      1.107   1382.390  16.00  2.419    3361.492    252.993   1107.091    39.380   1962.029  19756.620
 12-10      3.482   4508.674       .990   1309.865  16.00  2.418    3182.553    239.526   1083.466    66.511   1793.050  20275.780
 12-11      3.167   4326.484       .883   1244.429  16.00  2.416    3020.812    227.356   1053.325    41.970   1698.159  20722.850
 
 S TOT    110.920  93186.020     34.112  28188.480  16.00  2.417   68681.980   5145.264  18151.070  7466.904  37918.750  20722.850
 
 AFTER     21.923  81373.010      7.062  19144.330  16.00  2.405   46154.130   3497.193  15849.250  1337.299  25470.370  23309.200
 
 TOTAL    132.843 174559.000     41.174  47332.800  16.00  2.412  114836.100   8642.457  34000.320  8804.203  63389.120  23309.200
</TABLE> 

<TABLE> 
<CAPTION> 
 CUM.     636.889  64878.080            NET OIL REVENUES (M$)        658.787        --------- PRESENT WORTH PROFILE ---------
                                        NET GAS REVENUES (M$)     114177.300        DISC     PW OF NET     DISC     PW OF NET
 ULT.     769.732 239437.100            TOTAL   REVENUES (M$)     114836.100        RATE     BTAX,  M$     RATE     BTAX,  M$
                                                                                    ----     ---------     ----     ---------
<S>                           <C>       <C>                         <C>             <C>      <C>          <C>       <C> 
 BTAX RATE OF RETURN (PCT)     100.00    PRODUCT LIFE (YEARS)          90.417          .0     63389.100     35.0      7417.075
 BTAX PAYOUT YEARS               1.60    DISCOUNT RATE (PCT)           10.000         5.0     34684.510     40.0      6296.193
 BTAX PAYOUT YEARS (DISC)        1.64    GROSS OIL WELLS                 40.0        10.0     23309.200     50.0      4669.705
 BTAX NET INCOME/INVEST          8.20    GROSS GAS WELLS               1657.0        15.0     17196.380     60.0      3556.656
 BTAX NET INCOME/INVEST(DISC)    4.39    GROSS WELLS                   1697.0        20.0     13370.610     70.0      2755.139
                                                                                     25.0     10752.880     80.0      2155.726
 INITIAL W.I. %               28.2432    INITIAL NET OIL %            34.4241        30.0      8853.597     90.0      1694.113
 FINAL W.I. %                 19.8792    FINAL NET OIL %              72.8336                              100.0      1330.211
 PRODUCTION START DATE           1/94    INITIAL NET GAS %            25.3540
 REPORT DATE                     7/97    FINAL NET GAS %              19.7882
</TABLE> 
 
 JOHN D. DYER/PROJ. MANAGER
 WRIGHT & COMPANY, INC.
 BRENTWOOD, TN/HOUSTON, TX


                                      A-4
<PAGE>
 
<TABLE> 
<CAPTION> 

 TOTAL PROVED DEV. PRODUCING                                                                            DATE       : 09/18/97
 PDP                                                                                                    TIME       : 15:02:37
 TO THE INTERESTS OF                                                                                    
 DBS FILE   : PDC997
 PETROLEUM DEVELOPMENT CORP.                                                                            SETUP FILE : PDC997
                                                                                                        SEQ NUMBER : ******
                                           R E S E R V E S   A N D   E C O N O M I C S
                                           - - - - - - - -   - - -   - - - - - - - - -
 JOB 7.411                                                                                    PURSUANT TO SEC
                                                         AS OF  7/97
 
                                                    ---PRICES---  --------- OPERATIONS M$ --------                         10.0%
 -END-  --GROSS PRODUCTION--  ---NET PRODUCTION---  OIL    GAS     NET OPER   SEV + ADV  NET  OPER  CAPITAL   CASH FLOW  CUM. DISC
 MO-YR  OIL, MBBL  GAS, MMCF  OIL, MBBL  GAS, MMCF  $/B    $/M     REVENUES     TAXES    EXPENSES   COSTS M$  BTAX,  M$  BTAX,  M$
 -----  ---------  ---------  ---------  ---------  -----  -----  ----------  ---------  ---------  --------  ---------  ---------
 <S>    <C>        <C>         <C>       <C>        <C>    <C>     <C>         <C>       <C>          <C>     <C>        <C>      
 12-97      8.305   3752.487      2.852    865.840  16.00  2.380    2106.434    154.982    397.720      .000   1553.736   1517.153
 
 12-98     15.294   6632.159      5.219   1557.207  16.00  2.383    3794.332    280.164    784.897      .000   2729.268   3998.308
 12-99     13.209   5820.304      4.410   1384.330  16.00  2.387    3375.158    250.107    757.198      .000   2367.852   5955.232
 12-00     11.511   5228.007      3.672   1251.899  16.00  2.390    3050.440    226.488    722.914      .000   2101.039   7533.782
 12-01      9.349   4771.799      2.760   1148.870  16.00  2.390    2790.247    207.867    691.779      .000   1890.599   8825.089
 12-02      8.492   4399.210      2.465   1062.612  16.00  2.391    2580.165    192.459    672.613      .000   1715.095   9890.045
 
 12-03      7.621   4078.892      2.194    979.080  16.00  2.394    2378.929    177.493    634.761      .000   1566.675  10774.390
 12-04      6.497   3811.395      1.843    916.755  16.00  2.395    2224.838    166.160    618.967      .000   1439.712  11513.200
 12-05      5.831   3572.855      1.660    860.306  16.00  2.395    2087.265    155.923    604.086      .000   1327.257  12132.380
 12-06      5.287   3368.366      1.497    810.541  16.00  2.396    1965.975    146.887    592.751      .000   1226.338  12652.460
 12-07      4.719   3163.858      1.338    755.783  16.00  2.398    1833.577    137.073    562.370      .000   1134.131  13089.720
 
 12-08      4.284   2976.448      1.223    706.200  16.00  2.399    1713.661    128.040    535.644      .000   1049.975  13457.740
 12-09      3.873   2801.487      1.107    663.337  16.00  2.399    1608.942    120.251    517.466      .000    971.226  13767.200
 12-10      3.482   2638.361       .990    623.530  16.00  2.399    1511.530    112.927    501.464      .000    897.140  14027.070
 12-11      3.167   2476.193       .883    582.389  16.00  2.397    1410.192    105.259    477.353      .000    827.579  14245.000
 
 S TOT    110.920  59491.820     34.112  14168.680  16.00  2.392   34431.680   2562.081   9071.981      .000  22797.620  14245.000
 
 AFTER     21.923  31007.350      7.062   6938.697  16.00  2.395   16730.270   1249.658   7386.570      .000   8094.030  15320.300
 
 TOTAL    132.843  90499.170     41.174  21107.380  16.00  2.393   51161.950   3811.739  16458.550      .000  30891.650  15320.300
 
</TABLE> 

<TABLE> 
<CAPTION> 
 CUM.     636.889  64623.180            NET OIL REVENUES (M$)        658.787        --------- PRESENT WORTH PROFILE ---------
                                        NET GAS REVENUES (M$)      50503.150        DISC     PW OF NET     DISC     PW OF NET
 ULT.     769.732 155122.300            TOTAL   REVENUES (M$)      51161.940        RATE     BTAX,  M$     RATE     BTAX,  M$
                                                                                    ----     ---------     ----     ---------
<S>                          <C>        <C>                        <C>             <C>       <C>          <C>       <C> 
 BTAX RATE OF RETURN (PCT)    100.00    PRODUCT LIFE (YEARS)          78.667          .0     30891.640     35.0      7384.313
 BTAX PAYOUT YEARS               .00    DISCOUNT RATE (PCT)           10.000         5.0     20378.510     40.0      6772.003
 BTAX PAYOUT YEARS (DISC)        .00    GROSS OIL WELLS                 40.0        10.0     15320.290     50.0      5854.521
 BTAX NET INCOME/INVEST          .00    GROSS GAS WELLS               1155.0        15.0     12389.740     60.0      5197.513
 BTAX NET INCOME/INVEST(DISC)    .00    GROSS WELLS                   1195.0        20.0     10484.310     70.0      4702.085
                                                                                    25.0      9145.684     80.0      4314.046
 INITIAL W.I. %              28.3641    INITIAL NET OIL %            34.4241        30.0      8152.201     90.0      4001.140
 FINAL W.I. %                22.5992    FINAL NET OIL %              72.8336                              100.0      3742.980
 PRODUCTION START DATE          1/94    INITIAL NET GAS %            24.5823
 REPORT DATE                    7/97    FINAL NET GAS %              19.8257
</TABLE> 

 JOHN D. DYER/PROJ. MANAGER
 WRIGHT & COMPANY, INC.
 BRENTWOOD, TN/HOUSTON, TX


                                      A-5
<PAGE>
 
<TABLE> 
<CAPTION> 

 PROVED DEV. NONPRODUCING                                                                               DATE       : 09/18/97
 PDNP                                                                                                   TIME       : 15:02:45
 TO THE INTERESTS OF                                                                                    DBS FILE   : PDC997
 PETROLEUM DEVELOPMENT CORP.                                                                            SETUP FILE : PDC997
                                                                                                        SEQ NUMBER : ******
                                           R E S E R V E S   A N D   E C O N O M I C S
                                           - - - - - - - -   - - -   - - - - - - - - -
 JOB 7.411                                                                                    PURSUANT TO SEC
                                                         AS OF  7/97
 
                                                    ---PRICES---  --------- OPERATIONS M$ --------                         10.0%
 -END-  --GROSS PRODUCTION--  ---NET PRODUCTION---  OIL    GAS     NET OPER   SEV + ADV  NET  OPER  CAPITAL   CASH FLOW  CUM. DISC
 MO-YR  OIL, MBBL  GAS, MMCF  OIL, MBBL  GAS, MMCF  $/B    $/M     REVENUES     TAXES    EXPENSES   COSTS M$  BTAX,  M$  BTAX,  M$
 -----  ---------  ---------  ---------  ---------  -----  -----  ----------  ---------  ---------  --------  ---------  ---------
 <S>    <C>        <C>         <C>       <C>        <C>    <C>     <C>         <C>       <C>        <C>       <C>        <C>      
 12-97       .000    268.590       .000     70.170    .00  2.429     170.450     12.426     52.339  1371.349  (1265.664) (1235.070)
 
 12-98       .000   1253.116       .000    393.871    .00  2.451     965.334     73.878    284.224      .000    607.231   (683.041)
 12-99       .000   1442.077       .000    464.974    .00  2.454    1140.862     87.822    310.211      .000    742.828    (69.134)
 12-00       .000   1406.666       .000    456.881    .00  2.454    1121.344     86.458    308.736      .000    726.150    476.434
 12-01       .000   1333.511       .000    434.550    .00  2.455    1066.687     82.304    302.083      .000    682.299    942.453
 12-02       .000   1160.508       .000    377.263    .00  2.454     925.971     71.410    283.413      .000    571.148   1297.091
 
 12-03       .000   1018.256       .000    330.101    .00  2.454     810.115     62.437    268.017      .000    479.661   1567.847
 12-04       .000    904.235       .000    292.313    .00  2.454     717.290     55.248    255.687      .000    406.355   1776.371
 12-05       .000    811.079       .000    261.458    .00  2.454     641.499     49.379    245.626      .000    346.494   1938.013
 12-06       .000    733.735       .000    235.860    .00  2.453     578.623     44.512    237.285      .000    296.826   2063.896
 12-07       .000    668.589       .000    214.326    .00  2.453     525.731     40.418    230.277      .000    255.036   2162.224
 
 12-08       .000    612.901       .000    195.968    .00  2.453     480.646     36.930    224.320      .000    219.396   2239.121
 12-09       .000    564.691       .000    180.139    .00  2.452     441.778     33.926    219.203      .000    188.648   2299.230
 12-10       .000    522.576       .000    166.366    .00  2.452     407.964     31.315    214.770      .000    161.879   2346.121
 12-11       .000    485.492       .000    154.286    .00  2.452     378.313     29.028    210.897      .000    138.388   2382.563
 
 S TOT       .000  13186.020       .000   4228.525    .00  2.453   10372.610    797.492   3647.089  1371.349   4556.676   2382.563
 
 AFTER       .000   2875.430       .000    815.765    .00  2.439    1989.993    148.572   1265.335      .000    576.087   2484.540
 
 TOTAL       .000  16061.450       .000   5044.289    .00  2.451   12362.600    946.064   4912.424  1371.349   5132.763   2484.540
</TABLE> 

<TABLE> 
<CAPTION> 
 CUM.        .000    254.902            NET OIL REVENUES (M$)           .000        --------- PRESENT WORTH PROFILE ---------
                                        NET GAS REVENUES (M$)      12362.600        DISC     PW OF NET     DISC     PW OF NET
 ULT.        .000  16316.350            TOTAL   REVENUES (M$)      12362.600        RATE     BTAX,  M$     RATE     BTAX,  M$
                                                                                    ----     ---------     ----     ---------
<S>                          <C>        <C>                        <C>             <C>       <C>          <C>       <C> 
 BTAX RATE OF RETURN (PCT)     56.75    PRODUCT LIFE (YEARS)          49.250          .0      5132.764     35.0       527.995
 BTAX PAYOUT YEARS              2.39    DISCOUNT RATE (PCT)           10.000         5.0      3489.428     40.0       362.553
 BTAX PAYOUT YEARS (DISC)       2.63    GROSS OIL WELLS                   .0        10.0      2484.540     50.0       116.339
 BTAX NET INCOME/INVEST         4.74    GROSS GAS WELLS                 49.0        15.0      1816.582     60.0       (56.070)
 BTAX NET INCOME/INVEST(DISC)   2.86    GROSS WELLS                     49.0        20.0      1345.744     70.0      (181.936)
                                                                                    25.0       998.986     80.0      (276.786)
 INITIAL W.I. %              33.2506    INITIAL NET OIL %              .0000        30.0       734.790     90.0      (350.065)
 FINAL W.I. %                18.1265    FINAL NET OIL %                .0000                              100.0      (407.821)
 PRODUCTION START DATE          1/94    INITIAL NET GAS %            26.9140
 REPORT DATE                    7/97    FINAL NET GAS %              15.7343
</TABLE> 
 
 JOHN D. DYER/PROJ. MANAGER
 WRIGHT & COMPANY, INC.
 BRENTWOOD, TN/HOUSTON, TX


                                      A-6
<PAGE>
 
<TABLE> 
<CAPTION> 

 TOTAL PROVED UNDEVELOPED                                                                               DATE       : 09/18/97
 PU                                                                                                     TIME       : 15:04:56
 TO THE INTERESTS OF                                                                                    DBS FILE   : PDC997
 PETROLEUM DEVELOPMENT CORP.                                                                            SETUP FILE : PDC997
                                                                                                        SEQ NUMBER : ******
                                           R E S E R V E S   A N D   E C O N O M I C S
                                           - - - - - - - -   - - -   - - - - - - - - -
 JOB 7.411                                                                                    PURSUANT TO SEC
                                                         AS OF  7/97
 
                                                    ---PRICES---  --------- OPERATIONS M$ --------                         10.0%
 -END-  --GROSS PRODUCTION--  ---NET PRODUCTION---  OIL    GAS     NET OPER   SEV + ADV  NET  OPER  CAPITAL   CASH FLOW  CUM. DISC
 MO-YR  OIL, MBBL  GAS, MMCF  OIL, MBBL  GAS, MMCF  $/B    $/M     REVENUES     TAXES    EXPENSES   COSTS M$  BTAX,  M$  BTAX,  M$
 -----  ---------  ---------  ---------  ---------  -----  -----  ----------  ---------  ---------  --------  ---------  ---------
 <S>    <C>        <C>         <C>       <C>        <C>    <C>     <C>         <C>       <C>        <C>       <C>        <C>      
 12-97       .000     88.783       .000     76.058    .00  2.439     185.515     11.131      6.060  2162.596  (1994.272) (1947.315)
 
 12-98       .000    541.932       .000    426.991    .00  2.448    1045.194     70.577    174.404  2854.125  (2053.912) (3814.506)
 12-99       .000   1001.276       .000    743.221    .00  2.454    1824.199    133.627    388.877      .000   1301.694  (2738.726)
 12-00       .000   1023.069       .000    753.415    .00  2.455    1849.907    136.958    402.498      .000   1310.451  (1754.165)
 12-01       .000    991.155       .000    727.307    .00  2.456    1786.100    132.870    400.521      .000   1252.710   (898.547)
 12-02       .000    909.155       .000    666.690    .00  2.456    1637.293    121.909    385.041      .000   1130.343   (196.694)
 
 12-03       .000    793.213       .000    582.636    .00  2.456    1430.756    106.294    360.499      .000    963.964    347.439
 12-04       .000    701.655       .000    516.243    .00  2.455    1267.618     93.964    341.144      .000    832.510    774.648
 12-05       .000    627.737       .000    462.621    .00  2.455    1135.862     84.011    325.553      .000    726.297   1113.471
 12-06       .000    566.959       .000    418.508    .00  2.455    1027.475     75.829    312.768      .000    638.878   1384.417
 12-07       .000    516.210       .000    381.654    .00  2.455     936.925     68.999    302.126      .000    565.800   1602.558
 
 12-08       .000    473.175       .000    350.371    .00  2.455     860.066     63.209    293.152      .000    503.705   1779.104
 12-09       .000    435.982       .000    323.270    .00  2.455     793.491     58.209    285.500      .000    449.782   1922.418
 12-10       .000    403.493       .000    299.538    .00  2.454     735.198     53.846    278.909      .000    402.442   2038.991
 12-11       .000    374.871       .000    278.581    .00  2.454     683.725     50.006    273.184      .000    360.535   2133.931
 
 S TOT       .000   9448.665       .000   7007.104    .00  2.455   17199.320   1261.439   4530.237  5016.721   6390.928   2133.931
 
 AFTER       .000   2684.369       .000   2085.583    .00  2.449    5108.315    351.671   2153.455      .000   2603.188   2516.036
 
 TOTAL       .000  12133.030       .000   9092.687    .00  2.453   22307.640   1613.110   6683.692  5016.721   8994.116   2516.036
</TABLE> 

<TABLE> 
<CAPTION> 
 CUM.        .000       .000            NET OIL REVENUES (M$)           .000        --------- PRESENT WORTH PROFILE ---------
                                        NET GAS REVENUES (M$)      22307.630        DISC     PW OF NET     DISC     PW OF NET
 ULT.        .000  12133.030            TOTAL   REVENUES (M$)      22307.630        RATE     BTAX,  M$     RATE     BTAX,  M$
                                                                                    ----     ---------     ----     ---------
<S>                           <C>         <C>                        <C>             <C>       <C>          <C>       <C> 
 BTAX RATE OF RETURN (PCT)       22.54    PRODUCT LIFE (YEARS)          40.750          .0      8994.114     35.0     (1042.729)
 BTAX PAYOUT YEARS                4.66    DISCOUNT RATE (PCT)           10.000         5.0      4747.427     40.0     (1281.470)
 BTAX PAYOUT YEARS (DISC)         5.86    GROSS OIL WELLS                   .0        10.0      2516.035     50.0     (1605.667)
 BTAX NET INCOME/INVEST           2.79    GROSS GAS WELLS                 30.0        15.0      1177.610     60.0     (1803.216)
 BTAX NET INCOME/INVEST(DISC)     1.53    GROSS WELLS                     30.0        20.0       305.383     70.0     (1926.026)
                                                                                      25.0      (295.380)    80.0     (2002.292)
 INITIAL W.I. %                93.7571    INITIAL NET OIL %              .0000        30.0      (725.641)    90.0     (2048.414)
 FINAL W.I. %                 100.0000    FINAL NET OIL %                .0000                              100.0     (2074.436)
 PRODUCTION START DATE            1/94    INITIAL NET GAS %            77.6262
 REPORT DATE                      7/97    FINAL NET GAS %              85.6624
</TABLE> 

 JOHN D. DYER/PROJ. MANAGER
 WRIGHT & COMPANY, INC.
 BRENTWOOD, TN/HOUSTON, TX


                                      A-7
<PAGE>
 
<TABLE> 
<CAPTION> 

 PROVED DEV. NONPRODUCING                                                                               DATE       : 09/18/97
 BEHIND PIPE (PDNP-BP)                                                                                  TIME       : 15:04:51
 TO THE INTERESTS OF                                                                                    DBS FILE   : PDC997
 PETROLEUM DEVELOPMENT CORP.                                                                            SETUP FILE : PDC997
                                                                                                        SEQ NUMBER : ******
                                           R E S E R V E S   A N D   E C O N O M I C S
                                           - - - - - - - -   - - -   - - - - - - - - -
 JOB 7.411                                                                                    PURSUANT TO SEC
                                                         AS OF  7/97
 
                                                    ---PRICES---  --------- OPERATIONS M$ --------                         10.0%
 -END-  --GROSS PRODUCTION--  ---NET PRODUCTION---  OIL    GAS     NET OPER   SEV + ADV  NET  OPER  CAPITAL   CASH FLOW  CUM. DISC
 MO-YR  OIL, MBBL  GAS, MMCF  OIL, MBBL  GAS, MMCF  $/B    $/M     REVENUES     TAXES    EXPENSES   COSTS M$  BTAX,  M$  BTAX,  M$
 -----  ---------  ---------  ---------  ---------  -----  -----  ----------  ---------  ---------  --------  ---------  ---------
 <S>    <C>        <C>         <C>       <C>        <C>    <C>     <C>         <C>       <C>        <C>       <C>        <C>      
 12-97       .000       .000       .000       .000    .00   .000        .000       .000       .000      .000       .000       .000
 
 12-98       .000    349.222       .000     84.013    .00  2.363     198.562     15.587     12.781   175.517     (5.323)    (9.247)
 12-99       .000    718.355       .000    171.859    .00  2.355     404.664     31.766     35.116   276.770     61.012     38.591
 12-00       .000    766.290       .000    214.445    .00  2.358     505.579     39.688     48.476    64.029    353.386    303.151
 12-01       .000    721.225       .000    201.492    .00  2.385     480.479     37.718     50.853    50.454    341.455    536.210
 12-02       .000    728.636       .000    198.444    .00  2.420     480.250     37.700     55.487    38.026    349.037    752.765
 
 12-03       .000    759.955       .000    196.182    .00  2.418     474.404     37.241     59.243    56.073    321.847    934.241
 12-04       .000    802.647       .000    199.760    .00  2.411     481.558     37.802     63.878    61.428    318.450   1097.362
 12-05       .000    859.771       .000    217.884    .00  2.425     528.275     41.470     72.269    89.769    324.768   1248.028
 12-06       .000    839.308       .000    216.029    .00  2.417     522.188     40.992     76.536    38.341    366.319   1403.281
 12-07       .000    828.898       .000    206.666    .00  2.411     498.269     39.114     79.562    39.715    339.878   1534.341
 
 12-08       .000    860.778       .000    212.147    .00  2.406     510.420     40.068     82.421    40.852    347.079   1655.709
 12-09       .000    890.261       .000    215.644    .00  2.399     517.281     40.607     84.922    39.380    352.373   1767.771
 12-10       .000    944.244       .000    220.431    .00  2.395     527.860     41.437     88.323    66.511    331.588   1863.590
 12-11       .000    989.928       .000    229.173    .00  2.394     548.582     43.064     91.891    41.970    371.657   1961.353
 
 S TOT       .000  11059.520       .000   2784.170    .00  2.399    6678.373    524.252    901.759  1078.834   4173.527   1961.353
 
 AFTER       .000  44805.870       .000   9304.281    .00  2.399   22325.550   1747.292   5043.889  1337.299  14197.070   2988.330
 
 TOTAL       .000  55865.390       .000  12088.450    .00  2.399   29003.920   2271.545   5945.648  2416.134  18370.590   2988.330
</TABLE> 

<TABLE> 
<CAPTION> 
 CUM.        .000       .000            NET OIL REVENUES (M$)           .000        --------- PRESENT WORTH PROFILE ---------
                                        NET GAS REVENUES (M$)      29003.920        DISC     PW OF NET     DISC     PW OF NET
 ULT.        .000  55865.390            TOTAL   REVENUES (M$)      29003.920        RATE     BTAX,  M$     RATE     BTAX,  M$
                                                                                    ----     ---------     ----     ---------
<S>                          <C>        <C>                        <C>             <C>       <C>          <C>       <C> 
 BTAX RATE OF RETURN (PCT)    100.00    PRODUCT LIFE (YEARS)          90.417          .0     18370.580     35.0       547.496
 BTAX PAYOUT YEARS              1.59    DISCOUNT RATE (PCT)           10.000         5.0      6069.142     40.0       443.107
 BTAX PAYOUT YEARS (DISC)       1.69    GROSS OIL WELLS                   .0        10.0      2988.330     50.0       304.512
 BTAX NET INCOME/INVEST         8.60    GROSS GAS WELLS                423.0        15.0      1812.450     60.0       218.429
 BTAX NET INCOME/INVEST(DISC)   4.61    GROSS WELLS                    423.0        20.0      1235.171     70.0       161.017
                                                                                    25.0       903.589     80.0       120.758
 INITIAL W.I. %              20.9468    INITIAL NET OIL %              .0000        30.0       692.247     90.0        91.452
 FINAL W.I. %                18.9304    FINAL NET OIL %                .0000                              100.0        69.488
 PRODUCTION START DATE          1/94    INITIAL NET GAS %            20.8839
 REPORT DATE                    7/97    FINAL NET GAS %              19.4672
</TABLE> 
 
 JOHN D. DYER/PROJ. MANAGER
 WRIGHT & COMPANY, INC.
 BRENTWOOD, TN/HOUSTON, TX


                                      A-8
<PAGE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
  NO DEALER, SALESPERSON OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION IN CONNECTION WITH THIS OFFERING
OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS AND, IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY THE COMPANY, THE SELLING STOCKHOLDERS OR ANY UNDERWRITER. THIS
PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN OFFER
TO BUY ANY SECURITIES OTHER THAN THE SHARES OF COMMON STOCK TO WHICH IT
RELATES OR AN OFFER TO, OR A SOLICITATION OF, ANY PERSON IN ANY JURISDICTION
WHERE SUCH OFFER OR SOLICITATION WOULD BE UNLAWFUL. NEITHER THE DELIVERY OF
THIS PROSPECTUS NOR ANY SALE MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES,
CREATE ANY IMPLICATION THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS OF THE
COMPANY, OR THAT INFORMATION CONTAINED HEREIN IS CORRECT AS OF ANY TIME
SUBSEQUENT TO THE DATE HEREOF.
 
                               -----------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Prospectus Summary........................................................    1
Risk Factors..............................................................    5
Use of Proceeds...........................................................   11
Price Range of Common Stock...............................................   11
Dividend Policy...........................................................   11
Capitalization............................................................   12
Selected Consolidated Financial Data......................................   13
Management's Discussion and Analysis of Financial Condition and Results of
 Operations...............................................................   14
Business..................................................................   20
Management................................................................   35
Certain Transactions......................................................   41
Principal and Selling Stockholders........................................   42
Description of Capital Stock..............................................   43
Shares Eligible for Future Sale...........................................   45
Underwriting..............................................................   46
Legal Matters.............................................................   47
Experts...................................................................   47
Available Information.....................................................   48
Incorporation of Certain Documents by Reference...........................   48
Glossary of Certain Industry Terms........................................   49
Index to Consolidated Financial Statements................................  F-1
Summary Reserve Report....................................................  A-1
</TABLE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                               3,850,000 SHARES
 
           [LOGO OF PETROLEUM DEVELOPMENT CORPORATION APPEARS HERE]
 
                       PETROLEUM DEVELOPMENT CORPORATION
 
                                 COMMON STOCK
 
                              -------------------
                                  PROSPECTUS
                              -------------------
 
 
                        PENNSYLVANIA MERCHANT GROUP LTD
 
                                      , 1997
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
<TABLE>
<S>                                                                <C>
SEC Registration Fee.............................................. $ 11,699.34
NASD Filing Fee...................................................    4,360.78
Nasdaq Additional Listing Application Fee.........................   17,500.00
Blue Sky Qualification Fees and Expenses..........................   12,000.00*
Registrar and Transfer Agent Fees.................................   10,000.00*
Legal Fees and Expenses...........................................  150,000.00*
Accountants' Fees and Expenses....................................   60,000.00*
Printing and Engraving............................................  100,000.00*
Miscellaneous.....................................................   34,439.88*
                                                                   -----------
  Total........................................................... $400,000.00*
                                                                   ===========
</TABLE>
- --------
* Estimated.
 
  The Company will bear all of the foregoing expenses.
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
  The Form of Underwriting Agreement filed as Exhibit 1.1 hereto contains
certain provisions relating to indemnification.
 
  The Nevada general corporation law authorizes the registrant to grant
indemnities to directors and officers in terms sufficiently broad to permit
such indemnification under certain circumstances for liabilities (including
reimbursement for expenses incurred) arising under the Securities Act.
 
  The Company's By-Laws provide that the Company shall indemnify any director,
officer, employee, or other agent of the Company who is or was a party, or is
threatened to be made a party, to any proceeding (other than an action by or
in the right of the Company to procure a judgment in its favor) by reason of
the fact that such person is or was an agent of the Company against expenses,
judgments, fines, settlements, and other amounts actually and reasonably
incurred in connection with such proceeding, if that person acted in good
faith and in a manner that person reasonably believed to be in the best
interests of the Company, and in the case of a criminal proceeding, had no
reasonable cause to believe that the conduct was unlawful. In an action by or
in the right of the Company to procure a judgment in its favor, the Company
shall provide indemnification only against expenses actually and reasonably
incurred in connection with the defense or settlement of the action, and, in
addition to the requirements of acting in good faith and in the best interest
of the Company, the Company shall provide indemnification only if the person
acted with such care, including reasonable inquiry, as an ordinarily prudent
person in a like position would use under similar circumstances. However, the
Company will not provide indemnification: (i) in actions by or in the right of
the Company if the person is adjudged to be liable to the Company in the
performance of the person's duty to the Company, unless and only to the extent
that the court in the proceeding determines that the person is fairly and
reasonably entitled to indemnity for expenses; (ii) against amounts paid in
settling or otherwise disposing of an action, with or without court approval;
or (iii) against expenses incurred in defending an action which is settled or
otherwise disposed of without court approval.
 
  The Company has entered into separate indemnification agreements with each
of its officers and directors whereby the Company has agreed to indemnify the
director or officer against all expenses, including attorneys' fees, and other
amounts reasonably incurred by the officer or director in connection with any
threatened, pending or completed civil, criminal, administrative or
investigative action or proceeding to which such person is party by reason of
the fact he is or was a director or officer, as the case may be, of the
Company, if the person acted in good faith and in a manner reasonably believed
to be in or not opposed to the best interests of the Company, and, with
respect to any criminal action or proceeding, the person had no reasonable
cause to believe such conduct to be unlawful. The agreements provide for the
advancement of expenses and that the Company has the
 
                                     II-1
<PAGE>
 
right to purchase and maintain insurance on behalf of the director or officer
against any liability or liabilities asserted against him, whether or not the
Company would have the power to indemnify the person against such liability
under any provision of the agreement. The Company has agreed to indemnify such
person against expenses actually and reasonably incurred in connection with
any action in which the person has been successful on the merits or otherwise.
Indemnification must also be provided by the Company (unless ordered otherwise
by a court) only as authorized in the specific case upon a determination that
the indemnification of the person is appropriate because he has met the
applicable standard of conduct described in the agreement made by (i) the
Board of Directors, by a majority vote of a quorum consisting of directors who
are not parties to such action or proceeding, (ii) by independent legal
counsel in a written opinion or (iii) the stockholders of the Company.
 
ITEM 16. EXHIBITS.
 
<TABLE>   
<CAPTION>
 EXHIBIT NO.                       DESCRIPTION OF EXHIBIT
 -----------                       ----------------------
 <C>         <S>
     1.1     Form of Underwriting Agreement.*
     3.1     Articles of Incorporation of the Company, as amended.
     3.2     Amended and Restated By-Laws of the Company.
     4.1     Form of Warrant (incorporated by reference to Exhibit 4 of the
             Company's current report on Form 8-K filed on September 17, 1997).
     5.1     Opinion of Duane, Morris & Heckscher LLP.
 
                             MANAGEMENT CONTRACTS
 
    10.1     Employment Agreement dated as of July 1, 1988 between the Company
             and James N. Ryan, and all amendments thereto.
    10.2     Employment Agreement dated as of July 1, 1988 between the Company
             and Steven R. Williams, and all amendments thereto.
    10.3      Employment Agreement dated as of July 1, 1988 between the Company
              and Dale G. Rettinger, and all amendments thereto.
    10.4     Employment Agreement dated as of April 1, 1996 between the Company
             and Thomas E. Riley.
    10.5     The Company's Deferred Compensation Plan, dated December 29, 1994.
    10.6     Stock Redemption Agreement dated October 15, 1991 between the
             Company and James N. Ryan.
    10.7     Stock Redemption Agreement dated October 15, 1991 between the
             Company and Steven R. Williams.
    10.8     Stock Redemption Agreement dated October 15, 1991 between the
             Company and Dale G. Rettinger.
    10.9     The Company's 1990 Employee Incentive Stock Option Plan.
    10.10    The Company's 1997 Employee Incentive Stock Option Plan.
    10.11    Form of Notice of Grant of Incentive Stock Options.
    10.12    Profit Sharing Plan effective January 1, 1989, and all amendments
             thereto.
    10.13    Trust Agreement under the Company's Profit Sharing Plan, effective
             January 1, 1992.
    10.14    Savings and Protection Plan dated 1989, and all amendments
             thereto.
</TABLE>    
 
 
                                     II-2

<PAGE>
 
<TABLE>   
<CAPTION>
 EXHIBIT NO.                       DESCRIPTION OF EXHIBIT
 -----------                       ----------------------
 <C>         <S>
    10.15    Form of Indemnification Agreement between the Company and the
             directors and officers of the Company, and all amendments thereto.
 
                DATE:                     PARTY:
 
 
                January 1, 1987           James N. Ryan
                January 1, 1987           Steven R. Williams
                January 1, 1987           Dale G. Rettinger
                January 1, 1987           Roger J. Morgan
                 March 8, 1991            Vincent F. D'Annunzio
                 March 8, 1991            Jeffrey Swoveland
                  April 4, 1996           Ersel E. Morgan
                  April 4, 1996           Thomas E. Riley
                  April 4, 1996           Eric R. Stearns
                  April 4, 1996           Darwin L. Stump
 
    10.16    Form of Rabbi Trust Agreement between the Company and Frontier
             Trust Company.
 
                DATE:                     PARTY:
 
 
                October 15, 1995          James N. Ryan
                October 15, 1995          Steven R. Williams
                October 15, 1995          Dale G. Rettinger
 
                           OTHER MATERIAL CONTRACTS
 
    10.17    Amended and Restated Credit Agreement between the Company and
             First National Bank of Chicago, dated March 31, 1997.
    10.18    Agreement and Plan of Exchange between and the Company, RNG
             Holding Company, Thomas E. Riley and Donna R. Riley, dated April
             1, 1996.
    10.19    Purchase and Sale Agreement between the Company and Angerman
             Associates, Inc. dated July 16, 1996.
    11.1     Computation of Per Share Earnings.
    15.1     Letter re: unaudited interim financial information.
    21.1     Subsidiaries of the Company.
    23.1     Consent of Duane, Morris & Heckscher LLP (included in their
             opinion filed as Exhibit 5.1).
    23.2     Consent of KPMG Peat Marwick LLP.*
    23.3     Consent of Wright & Company, Inc.
</TABLE>    
- --------
   
* Filed herewith. All other exhibits previously filed under this Registration
  Statement.     
 
ITEM 17. UNDERTAKINGS.
 
  The Company undertakes that:
 
  (a) The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in the Registration Statement shall be deemed to be
a new registration statement relating to the securities offered therein, and
the offering of such securities at that time shall be deemed to be the initial
bona fide offering thereof.
 
  (b) For purposes of determining any liability under the Securities Act of
1933, the information omitted from the form of prospectus filed as part of
this registration statement in reliance upon Rule 430A and contained in a form
of prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or
497(h) under the Securities Act of 1933 shall be deemed to be part of this
registration statement as of the time it was declared effective.
 
                                     II-3
<PAGE>
 
  (c) For the purpose of determining any liability under the Securities Act of
1933, each post-effective amendment that contains a form of prospectus shall
be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.
 
  (d) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the foregoing provisions, otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the
registrant in the successful defense of any action, suit or proceeding) is
asserted by such director, officer or controlling person in connection with
the securities being registered, the registrant will, unless in the opinion of
its counsel the matter has been settled by controlling precedent, submit to a
court of appropriate jurisdiction the question whether such indemnification by
it is against public policy as expressed in the Act and will be governed by
the final adjudication of such issue.
 
                                     II-4
<PAGE>
 
                                  SIGNATURES
   
  Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-2 and has duly caused this Amendment to the
Registration Statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in Bridgeport, West Virginia on October 27, 1997.
    
                                     PETROLEUM DEVELOPMENT CORPORATION
                                         
                                              
                                     By: /s/ Steven R. Williams      
                                        -------------------------------------
                                            
                                         Steven R. Williams,     
                                            
                                         President     
          
  Pursuant to the requirements of the Securities Act of 1933, this Amendment
to the Registration Statement has been signed below by the following persons
in the capacities and on the dates indicated.     

<TABLE> 
<CAPTION>     
 
      SIGNATURE                           TITLE                       DATE
      ---------                           -----                       ----  
<S>                           <C>                               <C> 
/s/      *                    Chairman of the Board, Chief       October 27, 1997  
- -------------------------     Executive Officer and Director                 
James N. Ryan                 (principal executive officer)            
              
 
/s/ Steven R. Williams        President and Director                
- -------------------------                                        October 27, 1997
Steven R. Williams                                               
 
/s/ Dale G. Rettinger         Executive Vice President,             
- -------------------------     Treasurer and Director, Chief      October 27, 1997
Dale G. Rettinger             Financial Officer (principal       
                              financial and accounting
                              officer)
 
                                                                    
/s/      *                    Secretary and Director             October 27, 1997
- -------------------------                                        
Roger J. Morgan
 
                                                                    
/s/      *                    Director                           October 27, 1997
- -------------------------                                        
Vincent F. D'Annunzio
 
                                                                    
/s/      *                    Director                           October 27, 1997
- -------------------------                                        
Jeffrey C. Swoveland
         
*By: /s/ Dale G. Rettinger 
     -----------------------
        Dale G. Rettinger     
        Attorney-in-Fact 

</TABLE>           

 
                                     II-5
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>   
<CAPTION>
 EXHIBIT NO.                       DESCRIPTION OF EXHIBIT
 -----------                       ----------------------
 <C>         <S>
     1.1     Form of Underwriting Agreement.*
     3.1     Articles of Incorporation of the Company, as amended.
     3.2     Amended and Restated By-Laws of the Company.
     4.1     Form of Warrant (incorporated by reference to Exhibit 4 of the
             Company's current report on Form 8-K filed on September 17, 1997).
     5.1     Opinion of Duane, Morris & Heckscher LLP.
 
                              MANAGEMENT CONTRACTS
 
    10.1     Employment Agreement dated as of July 1, 1988 between the Company
             and James N. Ryan, and all amendments thereto.
    10.2     Employment Agreement dated as of July 1, 1988 between the Company
             and Steven R. Williams, and all amendments thereto.
    10.3      Employment Agreement dated as of July 1, 1988 between the Company
              and Dale G. Rettinger, and all amendments thereto.
    10.4     Employment Agreement dated as of April 1, 1996 between the Company
             and Thomas E. Riley.
    10.5     The Company's Deferred Compensation Plan, dated December 29, 1994.
    10.6     Stock Redemption Agreement dated October 15, 1991 between the
             Company and James N. Ryan.
    10.7     Stock Redemption Agreement dated October 15, 1991 between the
             Company and Steven R. Williams.
    10.8     Stock Redemption Agreement dated October 15, 1991 between the
             Company and Dale G. Rettinger.
    10.9     The Company's 1990 Employee Incentive Stock Option Plan.
    10.10    The Company's 1997 Employee Incentive Stock Option Plan.
    10.11    Form of Notice of Grant of Incentive Stock Options.
    10.12    Profit Sharing Plan effective January 1, 1989, and all amendments
             thereto.
    10.13    Trust Agreement under the Company's Profit Sharing Plan, effective
             January 1, 1992.
    10.14    Savings and Protection Plan dated 1989, and all amendments
             thereto.
    10.15    Form of Indemnification Agreement between the Company and the
             directors and officers of the Company, and all amendments thereto.
</TABLE>    
 
                DATE:                     PARTY:
                ----                      ----- 
 
                January 1, 1987           James N. Ryan
                January 1, 1987           Steven R. Williams
                January 1, 1987           Dale G. Rettinger
                January 1, 1987           Roger J. Morgan
                March 8, 1991             Vincent F. D'Annunzio
                March 8, 1991             Jeffrey Swoveland
                April 4, 1996             Ersel E. Morgan
                April 4, 1996             Thomas E. Riley
                April 4, 1996             Eric R. Stearns
                April 4, 1996             Darwin L. Stump
 

<PAGE>
 
<TABLE>   
<CAPTION>
 EXHIBIT NO.                      DESCRIPTION OF EXHIBIT
 -----------                      ----------------------
 <C>         <S>
             Form of Rabbi Trust Agreement between the Company and Frontier
    10.16    Trust Company.
 
                DATE:                     PARTY:
                ----                      ----- 
 
                October 15, 1995          James N. Ryan
                October 15, 1995          Steven R. Williams
                October 15, 1995          Dale G. Rettinger
 
                            OTHER MATERIAL CONTRACTS
 
    10.17    Amended and Restated Credit Agreement between the Company and
             First National Bank of Chicago, dated March 31, 1997.
    10.18    Agreement and Plan of Exchange between and the Company, RNG
             Holding Company, Thomas E. Riley and Donna R. Riley, dated April
             1, 1996.
    10.19    Purchase and Sale Agreement between the Company and Angerman
             Associates, Inc. dated July 16, 1996.
    11.1     Computation of Per Share Earnings.
    15.1     Letter re: unaudited interim financial information.
    21.1     Subsidiaries of the Company.
    23.1     Consent of Duane, Morris & Heckscher LLP (included in their
             opinion filed as Exhibit 5.1).
    23.2     Consent of KPMG Peat Marwick LLP.*
    23.3     Consent of Wright & Company, Inc.
</TABLE>    
 
- --------
   
*  Filed herewith. All other exhibits previously filed under this Registration
   Statement.     

<PAGE>
 
                                                                     Exhibit 1.1
                                                       
                                                   Draft of October 27, 1997    








                                3,850,000 SHARES

                       PETROLEUM DEVELOPMENT CORPORATION

                                  Common Stock

                             Underwriting Agreement

                           dated OCTOBER [___], 1997

                                        
<PAGE>
 
                             Underwriting Agreement

                                                             October [___], 1997

PENNSYLVANIA MERCHANT GROUP LTD
Four Falls Corporate Center
West Conshohocken, Pennsylvania  19428-2961

     As Representative of the Several Underwriters

Ladies and Gentlemen:

     INTRODUCTORY.  Petroleum Development Corporation, a Nevada corporation (the
"Company"), proposes to issue and sell to the several underwriters named in
                                                                           
Schedule A (the "Underwriters") an aggregate of 3,500,000 shares of its Common
- ----------                                                                    
Stock, par value $0.01 per share (the "Common Stock"); and the stockholders of
the Company named in Schedule B (collectively, the "Selling Stockholders")
                     ----------                                           
severally propose to sell to the Underwriters an aggregate of 350,000 shares of
Common Stock.  The 3,500,000 shares of Common Stock to be issued and sold by the
Company and the 350,000 shares of Common Stock to be sold by the Selling
Stockholders are collectively called the "Firm Common Shares".  In addition, the
Company has granted to the Underwriters an option to purchase up to an
additional 577,500 shares (the "Optional Common Shares") of Common Stock, as
provided in Section 2.  The Firm Common Shares and, if and to the extent such
option is exercised, the Optional Common Shares are collectively called the
"Common Shares".  Pennsylvania Merchant Group Ltd has agreed to act as the
representative of the several Underwriters (in such capacity, the
"Representative") in connection with the offering and sale of the Common Shares.
          
     The Company has prepared and filed with the Securities and Exchange
Commission (the "Commission") a registration statement on Form S-2 (File
No. 333-36369), which contains a form of prospectus to be used in connection
with the public offering and sale of the Common Shares.  Such registration
statement, as amended, including the financial statements, exhibits and
schedules thereto, in the form in which it was declared effective by the
Commission under the Securities Act of 1933, as amended, and the rules and
regulations promulgated thereunder (collectively, the "Securities Act"),
including any information deemed to be a part thereof at the time of
effectiveness pursuant to Rule 430A or Rule 434 under the Securities Act, is
called the "Registration Statement".  Any registration statement filed by the
Company pursuant to Rule 462(b) under the Securities Act is called the
"Rule 462(b) Registration Statement", and from and after the date and time of
filing of the Rule 462(b) Registration Statement the term "Registration
Statement" shall include the Rule 462(b) Registration Statement.  Such
prospectus, in the form first used by the Underwriters to confirm sales of the
Common Shares, is called the "Prospectus"; provided, however, if the Company
has, with the consent of Pennsylvania Merchant Group Ltd, elected to rely upon
Rule 434 under the Securities Act, the term     

                                
<PAGE>
 
     
"Prospectus" shall mean the Company's prospectus subject to completion (each, a
"preliminary prospectus") dated September 30, 1997 (such preliminary prospectus
is called the "Rule 434 preliminary prospectus"), together with the applicable
term sheet (the "Term Sheet") prepared and filed by the Company with the
Commission under Rules 434 and 424(b) under the Securities Act and all
references in this Agreement to the date of the Prospectus shall mean the date
of the Term Sheet. All references in this Agreement to the Registration
Statement, the Rule 462(b) Registration Statement, a preliminary prospectus, the
Prospectus or the Term Sheet, or any amendments or supplements to any of the
foregoing, shall include any copy thereof filed with the Commission pursuant to
its Electronic Data Gathering, Analysis and Retrieval System ("EDGAR").     

     The Company and each of the Selling Stockholders hereby confirm their
respective agreements with the Underwriters as follows:

SECTION  1.    REPRESENTATIONS AND WARRANTIES.
        A.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company hereby
represents, warrants and covenants to each Underwriter as follows:

        (a) Compliance with Registration Requirements. The Registration
     Statement and any Rule 462(b) Registration Statement have been declared
     effective by the Commission under the Securities Act. The Company has
     complied to the Commission's satisfaction with all requests of the
     Commission for additional or supplemental information. No stop order
     suspending the effectiveness of the Registration Statement or any
     Rule 462(b) Registration Statement is in effect and no proceedings for such
     purpose have been instituted or are pending or, to the best knowledge of
     the Company, are contemplated or threatened by the Commission. 

          Each preliminary prospectus and the Prospectus when filed complied in
     all material respects with the Securities Act and, if filed by electronic
     transmission pursuant to EDGAR (except as may be permitted by Regulation S-
     T under the Securities Act), was identical to the copy thereof delivered to
     the Underwriters for use in connection with the offer and sale of the
     Common Shares.  Each of the Registration Statement, any Rule 462(b)
     Registration Statement and any post-effective amendment thereto, at the
     time it became effective and at all subsequent times, complied and will
     comply in all material respects with the Securities Act and did not and
     will not contain any untrue statement of a material fact or omit to state a
     material fact required to be stated therein or necessary to make the
     statements therein not misleading.  The Prospectus, as amended or
     supplemented, as of its date and at all subsequent times, did not and will
     not contain any untrue statement of a material fact or omit to state a
     material fact necessary in order to make the statements therein, in the
     light of the circumstances under which they were made, not misleading.  The
     representations and warranties set forth in the two immediately preceding
     sentences do not apply to statements in or omissions from the Registration
     Statement, any Rule 462(b) Registration Statement, or any post-effective
     amendment thereto, or the Prospectus, or any amendments or supplements
     thereto, made in reliance upon and in conformity with information relating

                                      -2-
<PAGE>
 
     to any Underwriter furnished to the Company in writing by the
     Representative expressly for use therein. There are no contracts or other
     documents required to be described in the Prospectus or to be filed as
     exhibits to the Registration Statement which have not been described or
     filed as required.

        (b)  Offering Materials Furnished to Underwriters. The Company has
     delivered to the Representative three (3) complete manually signed copies
     of the Registration Statement and of each consent and certificate of
     experts filed as a part thereof, and conformed copies of the Registration
     Statement (without exhibits) and preliminary prospectuses and the
     Prospectus, as amended or supplemented, in such quantities and at such
     places as the Representative has reasonably requested.

        (c)  Distribution of Offering Materials By the Company. The Company has
     not distributed and will not distribute, prior to the later of the Second
     Closing Date (as defined below) and the completion of the Underwriters'
     distribution of the Common Shares, any offering material in connection with
     the offering and sale of the Common Shares other than a preliminary
     prospectus, the Prospectus or the Registration Statement.

        (d)  The Underwriting Agreement. This Agreement has been duly
     authorized, executed and delivered by, and is a valid and binding agreement
     of, the Company, enforceable in accordance with its terms, except as rights
     to indemnification hereunder may be limited by applicable law and except as
     the enforcement hereof may be limited by bankruptcy, insolvency,
     reorganization, moratorium or other similar laws relating to or affecting
     the rights and remedies of creditors or by general equitable principles.

        (e)  Authorization of the Common Shares. The Common Shares to be
     purchased by the Underwriters from the Company have been duly authorized
     for issuance and sale pursuant to this Agreement and, when issued and
     delivered by the Company pursuant to this Agreement, will be validly
     issued, fully paid and nonassessable.

        (f)  No Applicable Registration or Other Similar Rights. There are no
     persons with registration or other similar rights to have any equity or
     debt securities registered for sale under the Registration Statement or
     included in the offering contemplated by this Agreement.

        (g)  No Material Adverse Change.  Except as otherwise disclosed in the
     Prospectus, subsequent to the respective dates as of which information is
     given in the Prospectus: (i) there has been no material adverse change, or
     any development that could reasonably be expected to result in a material
     adverse change, in the condition, financial or otherwise, or in the
     earnings, business, operations or prospects, whether or not arising from
     transactions in the ordinary course of business, of the Company and its
     subsidiaries, considered as one entity (any such change is called a
     "Material Adverse Change"); (ii) the Company and its subsidiaries,
     considered as one entity, have not incurred any material liability or
     obligation, indirect, direct or contingent, not in the ordinary course of
     business nor entered into any material transaction or agreement not in the
     ordinary course of business; and (iii) there has been no dividend or
     distribution of any kind declared, paid or made by the Company or, except
     for dividends paid to the Company or other subsidiaries,

                                      -3-
<PAGE>
 
     any of its subsidiaries on any class of capital stock or repurchase or
     redemption by the Company or any of its subsidiaries of any class of
     capital stock.
         
        (h)  Independent Accountants. KPMG Peat Marwick LLP, which has expressed
     its opinion with respect to the financial statements (which term as used in
     this Agreement includes the related notes thereto) filed with the
     Commission as a part of the Registration Statement and included in the
     Prospectus, are independent public or certified public accountants as
     required by the Securities Act and the Securities Exchange Act of 1934, as
     amended, and the rules and regulations promulgated thereunder
     (collectively, the "Exchange Act").     
            
        (i)  Preparation of the Financial Statements. The financial statements
     filed with the Commission as a part of the Registration Statement and
     included in the Prospectus present fairly the consolidated financial
     position of the Company and its subsidiaries as of and at the dates
     indicated and the results of their operations and cash flows for the
     periods specified. Such financial statements have been prepared in
     conformity with generally accepted accounting principles applied on a
     consistent basis throughout the periods involved, except as may be
     expressly stated in the related notes thereto. No other financial
     statements or supporting schedules are required to be included in the
     Registration Statement. The financial data set forth in the Prospectus
     under the captions "Prospectus Summary--Summary Consolidated Financial
     Data", "Selected Consolidated Financial Data," "Capitalization" and
     "Quarterly Results of Operations" fairly present the information set forth
     therein on a basis consistent with that of the audited financial statements
     contained in the Registration Statement.     

        (j)  Preparation of Other Data. The data set forth in the Prospectus
     under the captions "Prospectus Summary--Summary Operating Data", "--Summary
     Reserve Data", "Management's Discussion and Analysis of Financial Condition
     and Results of Operations--Overview", "Business--Properties" and "--Natural
     Gas Leases" present fairly and accurately the data specified therein as of
     the dates or for the periods indicated. Such data has been prepared in
     accordance with practices generally accepted in the Company's industry and,
     to the extent applicable, on a basis consistent with that of the Summary
     Reserve Report included as Appendix A to the Prospectus.

        (k) Incorporation and Good Standing of the Company and its Subsidiaries.
     Each of the Company and its subsidiaries has been duly incorporated and is
     validly existing as a corporation in good standing under the laws of the
     jurisdiction of its incorporation and has corporate power and authority to
     own, lease and operate its properties and to conduct its business as
     described in the Prospectus and, in the case of the Company, to enter into
     and perform its obligations under this Agreement. Each of the Company and
     each subsidiary is duly qualified as a foreign corporation to transact
     business and is in good standing in each jurisdiction in which such
     qualification is required, whether by reason of the ownership or leasing of
     property or the conduct of business, except for such jurisdictions (other
     than the State of West Virginia) where the

                                      -4-
<PAGE>
 
     failure to so qualify or to be in good standing would not, individually or
     in the aggregate, result in a Material Adverse Change.  Except as set forth
     in the Prospectus, all of the issued and outstanding capital stock of each
     subsidiary has been duly authorized and validly issued, is fully paid and
     nonassessable and is owned by the Company, directly or through
     subsidiaries, free and clear of any security interest, mortgage, pledge,
     lien, encumbrance or claim.  The Company does not own or control, directly
     or indirectly, any corporation, association or other entity other than the
     subsidiaries listed in Exhibit 21 to the Registration Statement.

        (l) Capitalization and Other Capital Stock Matters. The authorized,
     issued and outstanding capital stock of the Company is as set forth in the
     Prospectus under the caption "Capitalization" (other than for subsequent
     issuances, if any, pursuant to employee benefit plans described in the
     Prospectus or upon exercise of outstanding options or warrants described in
     the Prospectus). The Common Stock (including the Common Shares) conforms in
     all material respects to the description thereof contained in the
     Prospectus. All of the issued and outstanding shares of Common Stock
     (including the shares of Common Stock owned by Selling Stockholders) have
     been duly authorized and validly issued, are fully paid and nonassessable
     and have been issued in compliance with federal and state securities laws.
     None of the outstanding shares of Common Stock were issued in violation of
     any preemptive rights, rights of first refusal or other similar rights to
     subscribe for or purchase securities of the Company. There are no
     authorized or outstanding options, warrants, preemptive rights, rights of
     first refusal or other rights to purchase, or equity or debt securities
     convertible into or exchangeable or exercisable for, any capital stock of
     the Company or any of its subsidiaries other than those accurately
     described in the Prospectus. The description of the Company's stock option,
     stock bonus and other stock plans or arrangements, and the options or other
     rights granted thereunder, set forth in the Prospectus accurately and
     fairly presents the information required to be shown with respect to such
     plans, arrangements, options and rights.

        (m) Stock Exchange Listing. The Common Stock (including the Common
     Shares) is registered pursuant to Section 12(g) of the Exchange Act and is
     listed on the Nasdaq National Market, and the Company has taken no action
     designed to, or likely to have the effect of, terminating the registration
     of the Common Stock under the Exchange Act or delisting the Common Stock
     from the Nasdaq National Market, nor has the Company received any
     notification that the Commission or the National Association of Securities
     Dealers, Inc. (the "NASD") is contemplating terminating such registration
     or listing.

        (n) Non-Contravention of Existing Instruments; No Further Authorizations
     or Approvals Required. Neither the Company nor any of its subsidiaries is
     in violation of its charter or by-laws or is in default (or, with the
     giving of notice or lapse of time, would be in default) ("Default") under
     any indenture, mortgage, loan or credit agreement, note, contract,
     franchise, lease or other instrument to which the Company or any of its
     subsidiaries is a party or by which it or any of them may be bound
     (including, without limitation, the Company's Amended and Restated Credit
     Agreement with First National Bank of Chicago), or to which any of the
     property or assets of the Company or any of its

                                      -5-
<PAGE>
 
     subsidiaries is subject (each, an "Existing Instrument"), except for such
     Defaults as would not, individually or in the aggregate, result in a
     Material Adverse Change.  The Company's execution, delivery and performance
     of this Agreement and consummation of the transactions contemplated hereby
     and by the Prospectus (i) have been duly authorized by all necessary
     corporate action and will not result in any violation of the provisions of
     the charter or by-laws of the Company or any subsidiary, (ii) will not
     conflict with or constitute a breach of, or Default under, or result in the
     creation or imposition of any lien, charge or encumbrance upon any property
     or assets of the Company or any of its subsidiaries pursuant to, or require
     the consent of any other party to, any Existing Instrument, except for such
     conflicts, breaches, Defaults, liens, charges or encumbrances as would not,
     individually or in the aggregate, result in a Material Adverse Change and
     (iii) will not result in any violation of any law, administrative
     regulation or administrative or court decree applicable to the Company or
     any subsidiary.  No consent, approval, authorization or other order of, or
     registration or filing with, any court or other governmental or regulatory
     authority or agency, is required for the Company's execution, delivery and
     performance of this Agreement and consummation of the transactions
     contemplated hereby and by the Prospectus, except such as have been
     obtained or made by the Company and are in full force and effect under the
     Securities Act, applicable state securities or blue sky laws and from the
     NASD.

        (o) No Material Actions or Proceedings. There are no legal or
     governmental actions, suits or proceedings pending or, to the best of the
     Company's knowledge, threatened (i) against or affecting the Company or any
     of its subsidiaries, (ii) which has as the subject thereof any officer or
     director of, or property owned or leased by, the Company or any of its
     subsidiaries or (iii) relating to environmental or discrimination matters,
     where in any such case (A) there is a reasonable possibility that such
     action, suit or proceeding might be determined adversely to the Company or
     such subsidiary and (B) any such action, suit or proceeding, if so
     determined adversely, would reasonably be expected to result in a Material
     Adverse Change or adversely affect the consummation of the transactions
     contemplated by this Agreement. No material labor dispute with the
     employees of the Company or any of its subsidiaries, or with the employees
     of any principal supplier of the Company, exists or, to the best of the
     Company's knowledge, is threatened or imminent.

        (p) Intellectual Property Rights. The Company and its subsidiaries own
     or possess sufficient trademarks, trade names, patent rights, copyrights,
     licenses, approvals, trade secrets and other similar rights (collectively,
     "Intellectual Property Rights") reasonably necessary to conduct their
     businesses as now conducted; and the expected expiration of any of such
     Intellectual Property Rights would not result in a Material Adverse Change.
     Neither the Company nor any of its subsidiaries has received any notice of
     infringement or conflict with asserted Intellectual Property Rights of
     others, which infringement or conflict, if the subject of an unfavorable
     decision, would result in a Material Adverse Change.

                                      -6-
<PAGE>
 
        (q) All Necessary Permits, etc. The Company and each subsidiary possess
     such valid and current certificates, authorizations or permits issued by
     the appropriate local, state, federal or foreign regulatory agencies or
     bodies necessary to conduct their respective businesses, and neither the
     Company nor any subsidiary has received any notice of proceedings relating
     to the revocation or modification of, or non-compliance with, any such
     certificate, authorization or permit which, singly or in the aggregate, if
     the subject of an unfavorable decision, ruling or finding, could result in
     a Material Adverse Change.
        
        (r) Title to Properties. The Company and each of its subsidiaries has
     good and marketable title to all the properties and assets reflected as
     owned in the financial statements referred to in Section 1(A) (i) above (or
     elsewhere in the Prospectus), in each case free and clear of any security
     interests, mortgages, liens, encumbrances, equities, claims and other
     defects, except such as do not materially and adversely affect the value of
     such property and do not materially interfere with the use made or proposed
     to be made of such property by the Company or such subsidiary. The real
     property, improvements, equipment and personal property held under lease by
     the Company or any subsidiary are held under valid and enforceable leases,
     with such exceptions as are not material and do not materially interfere
     with the use made or proposed to be made of such real property,
     improvements, equipment or personal property by the Company or such
     subsidiary.
        
        (s) Tax Law Compliance. The Company and its subsidiaries have filed all
     necessary federal, state and foreign income and franchise tax returns and
     have paid all taxes required to be paid by any of them and, if due and
     payable, any related or similar assessment, fine or penalty levied against
     any of them. The Company has made adequate charges, accruals and reserves
     in the applicable financial statements referred to in Section 1(A)(i) above
     in respect of all federal, state and foreign income and franchise taxes for
     all periods as to which the tax liability of the Company or any of its
     subsidiaries has not been finally determined.

        (t) Company Not an "Investment Company". The Company has been advised of
     the rules and requirements under the Investment Company Act of 1940, as
     amended (the "Investment Company Act"). The Company is not, and after
     receipt of payment for the Common Shares will not be, an "investment
     company" within the meaning of Investment Company Act and will conduct its
     business in a manner so that it will not become subject to the Investment
     Company Act.
            
        (u)  Insurance.  Each of the Company and its subsidiaries are insured by
     recognized, financially sound and reputable institutions with policies in
     such amounts and with such deductibles and covering such risks as are
     generally deemed adequate and customary for their businesses including, but
     not limited to, policies covering real and personal property owned or
     leased by the Company and its subsidiaries against theft, damage,
     destruction and acts of vandalism. The Company has no reason to believe
     that it or any subsidiary will not be able (i) to renew its existing
     insurance coverage as and when such policies expire or (ii) to obtain
     comparable coverage from similar institutions as may be necessary or
     appropriate to conduct its business as now conducted and at a cost that
     would not result in a Material Adverse Change. The Company and its
     subsidiaries are in good standing under the applicable workman's     

                                      -7-
<PAGE>
 
     compensation plan or program in each state in which the Company and its
     subsidiaries have employees.  Neither the Company nor any subsidiary has
     been denied any insurance coverage which it has sought or for which it has
     applied.

        (v) No Price Stabilization or Manipulation. The Company has not taken
     and will not take, directly or indirectly, any action designed to or that
     might be reasonably expected to cause or result in stabilization or
     manipulation of the price of the Common Stock to facilitate the sale or
     resale of the Common Shares.

        (w)  Related Party Transactions.  There are no business relationships or
     related-party transactions involving the Company or any subsidiary or any
     other person required to be described in the Prospectus which have not been
     described as required.

        (x) No Unlawful Contributions or Other Payments. Neither the Company nor
     any of its subsidiaries nor, to the best of the Company's knowledge, any
     employee or agent of the Company or any subsidiary, has made any
     contribution or other payment to any official of, or candidate for, any
     federal, state or foreign office in violation of any law or of the
     character required to be disclosed in the Prospectus.

        (y) Company's Accounting System. The Company maintains a system of
     accounting controls sufficient to provide reasonable assurances that
     (i) transactions are executed in accordance with management's general or
     specific authorization; (ii)  transactions are recorded as necessary to
     permit preparation of financial statements in conformity with generally
     accepted accounting principles and to maintain accountability for assets;
     (iii) access to assets is permitted only in accordance with management's
     general or specific authorization; and (iv) the recorded accountability for
     assets is compared with existing assets at reasonable intervals and
     appropriate action is taken with respect to any differences.

        (z) Compliance with Environmental Laws. Except as would not,
     individually or in the aggregate, result in a Material Adverse Change (i) 
     neither the Company nor any of its subsidiaries is in violation of any
     federal, state, local or foreign law or regulation relating to pollution or
     protection of human health or the environment (including, without
     limitation, ambient air, surface water, groundwater, land surface or
     subsurface strata) or wildlife, including without limitation, laws and
     regulations relating to emissions, discharges, releases or threatened
     releases of chemicals, pollutants, contaminants, wastes, toxic substances,
     hazardous substances, petroleum and petroleum products (collectively,
     "Materials of Environmental Concern"), or otherwise relating to the
     manufacture, processing, distribution, use, treatment, storage, disposal,
     transport or handling of Materials of Environment Concern (collectively,
     "Environmental Laws"),

                                      -8-
<PAGE>
 
     which violation includes, but is not limited to, noncompliance with any
     permits or other governmental authorizations required for the operation of
     the business of the Company or its subsidiaries under applicable
     Environmental Laws, or noncompliance with the terms and conditions thereof,
     nor has the Company or any of its subsidiaries received any written
     communication, whether from a governmental authority, citizens group,
     employee or otherwise, that alleges that the Company or any of its
     subsidiaries is in violation of any Environmental Law; (ii) there is no
     claim, action or cause of action filed with a court or governmental
     authority, no investigation with respect to which the Company has received
     written notice, and no written notice by any person or entity alleging
     potential liability for investigatory costs, cleanup costs, governmental
     responses costs, natural resources damages, property damages, personal
     injuries, attorneys' fees or penalties arising out of, based on or
     resulting from the presence, or release into the environment, of any
     Material of Environmental Concern at any location owned, leased or operated
     by the Company or any of its subsidiaries, now or in the past
     (collectively, "Environmental Claims"), pending or, to the best of the
     Company's knowledge, threatened against the Company or any of its
     subsidiaries or any person or entity whose liability for any Environmental
     Claim the Company or any of its subsidiaries has retained or assumed either
     contractually or by operation of law; and (iii) to the best of the
     Company's knowledge, there are no past or present actions, activities,
     circumstances, conditions, events or incidents, including, without
     limitation, the release, emission, discharge, presence or disposal of any
     Material of Environmental Concern, that reasonably could result in a
     violation of any Environmental Law or form the basis of a potential
     Environmental Claim against the Company or any of its subsidiaries or
     against any person or entity whose liability for any Environmental Claim
     the Company or any of its subsidiaries has retained or assumed either
     contractually or by operation of law.

        (aa) Periodic Review of Costs and Liabilities of Environmental
     Compliance. In the ordinary course of its business, the Company conducts a
     periodic review of the effect of Environmental Laws on the business,
     operations and properties of the Company and its subsidiaries, in the
     course of which it identifies and evaluates associated costs and
     liabilities (including, without limitation, any capital or operating
     expenditures required for clean-up, closure of properties or compliance
     with Environmental Laws or any permit, license or approval, any related
     constraints on operating activities and any potential liabilities to third
     parties). On the basis of such review and the amount of its established
     reserves, the Company has reasonably concluded that such associated costs
     and liabilities would not, individually or in the aggregate, result in a
     Material Adverse Change.

        (bb) ERISA Compliance. The Company and its subsidiaries and any
     "employee benefit plan" (as defined under the Employee Retirement Income
     Security Act of 1974, as amended, and the regulations and published
     interpretations thereunder (collectively, "ERISA")) established or
     maintained by the Company, its subsidiaries or their "ERISA Affiliates" (as
     defined below) are in compliance in all material respects with ERISA.
     "ERISA Affiliate" means, with respect to the Company or a subsidiary, any
     member of any group of organizations described in Sections 414(b),(c),(m)
     or (o) of the Internal Revenue Code of 1986, as amended, and the
     regulations and published interpretations thereunder (the "Code") of which
     the Company or such subsidiary is a member. No "reportable event" (as
     defined under ERISA) has occurred or is reasonably expected to occur with
     respect to any "employee benefit plan" established or maintained by the
     Company, its subsidiaries or any of their ERISA Affiliates. No "employee
     benefit plan" established or maintained by the Company, its subsidiaries or
     any of their ERISA Affiliates, if such "employee benefit plan" were
     terminated, would have any "amount of unfunded benefit liabilities" (as
     defined under ERISA). Neither the Company, its

                                      -9-
<PAGE>
 
     subsidiaries nor any of their ERISA Affiliates has incurred or reasonably
     expects to incur any liability under (i) Title IV of ERISA with respect to
     termination of, or withdrawal from, any "employee benefit plan" or
     (ii) Sections 412, 4971, 4975 or 4980B of the Code.  Each "employee benefit
     plan" established or maintained by the Company, its subsidiaries or any of
     their ERISA Affiliates that is intended to be qualified under
     Section 401(a) of the Code is so qualified and nothing has occurred,
     whether by action or failure to act, which would cause the loss of such
     qualification.

        (cc) Reserve Information. The historical information underlying the
     estimates of the reserves of the Company supplied by the Company to Wright
     & Company, Inc., independent petroleum engineers (the "Petroleum
     Engineers"), for the purposes of preparing the reserve reports of the
     Company referenced and included in the Prospectus (the "Reserve Reports"),
     including, without limitation, production volumes, sales prices for
     production, contractual pricing provisions under oil or gas sales or
     marketing contracts or under hedging arrangements, costs of operations and
     development, and working interest and net revenue information relating to
     the Company's ownership interests in properties, was true and correct in
     all material respects on the date of such Reserve Reports; the estimates of
     future capital expenditures and other future exploration and development
     costs supplied to the Petroleum Engineers were prepared in good faith and
     with a reasonable basis; the information provided by the Petroleum
     Engineers for purposes of preparing the Reserve Reports was prepared in
     accordance with customary industry practices; to the best of the Company's
     knowledge, the Petroleum Engineers were, as of the date of the Reserve
     Reports prepared by them, and are, as of the date hereof, independent
     petroleum engineers with respect to the Company; other than normal
     production of reserves and intervening spot market product price
     fluctuations, and except as disclosed in the Registration Statement and the
     Prospectus, the Company is not aware of any facts or circumstances that
     would result in a materially adverse change in the reserves in the
     aggregate, or the aggregate present value of future net cash flows
     therefrom, as described in the Prospectus and as reflected in the Reserve
     Reports; estimates of such reserves and the present value of the future net
     cash flows therefrom as described in the Prospectus and reflected in the
     Reserve Reports comply in all material respects to the applicable
     requirements of the Rules and Regulations.

        (dd) Royalties; No Claims. Except as described or reflected in the
     financial statements set forth in the Prospectus, as of the last balance
     sheet reflected in the Prospectus; (1) all royalties, rentals, deposits and

                                      -10-
<PAGE>
 
     other amounts due on the oil and gas properties of the Company and its
     subsidiaries have been properly and timely paid, and no proceeds from the
     sale or production attributable to the oil and gas properties of the
     Company and its subsidiaries are currently being held in suspense by any
     purchaser thereof, except where such amounts due would not, singly or in
     the aggregate, have a Material Adverse Change, and (2) there are no claims
     under take-or-pay contracts pursuant to which material gas purchasers have
     any make-up rights affecting the interest of the Company or any of its
     subsidiaries in their oil and gas properties, except where such claims
     would not, singly or in the aggregate, have a Material Adverse Change.

        (ee) No Brokers or Finders. Other than as contemplated by this
     Agreement, there is no broker, finder or other party that is entitled to
     receive from the Company or the Selling Stockholders any brokerage or
     finder's fee or other fee or commission as a result of any of the
     transactions contemplated by this Agreement.

           Any certificate signed by an officer of the Company and delivered to
the Representative or to counsel for the Underwriters shall be deemed to be a
representation and warranty by the Company to each Underwriter as to the matters
set forth therein.
    
        B. REPRESENTATIONS AND WARRANTIES OF THE SELLING STOCKHOLDERS. Each 
Selling Stockholder represents, warrants and covenants to each Underwriter as
follows:      

        (a) The Underwriting Agreement. This Agreement has been duly authorized,
     executed and delivered by or on behalf of such Selling Stockholder and is a
     valid and binding agreement of such Selling Stockholder, enforceable in
     accordance with its terms, except as rights to indemnification hereunder
     may be limited by applicable law and except as the enforcement hereof may
     be limited by bankruptcy, insolvency, reorganization, moratorium or other
     similar laws relating to or affecting the rights and remedies of creditors
     or by general equitable principles.
    
        (b) The Custody Agreement and Power of Attorney. Each of the (i) Custody
     Agreement signed by such Selling Stockholder and the Company, as custodian
     (the "Custodian"), relating to the deposit of the Common Shares to be sold
     by such Selling Stockholder (the "Custody Agreement") and (ii) Power of
     Attorney appointing certain individuals named therein as such Selling
     Stockholder's attorneys-in-fact (each, an "Attorney-in-Fact") to the extent
     set forth therein relating to the transactions contemplated hereby and by
     the Prospectus (the "Power of Attorney"), of such Selling Stockholder has
     been duly authorized, executed and delivered by such Selling Stockholder
     and is a valid and binding agreement of such Selling Stockholder,
     enforceable in accordance with its terms, except as rights to
     indemnification thereunder may be limited by applicable law and except as
     the enforcement thereof may be limited by bankruptcy, insolvency,
     reorganization, moratorium or other similar laws relating to or affecting
     the rights and remedies of creditors or by general equitable principles.
     
        (c) Title to Common Shares to be Sold; All Authorizations Obtained. Such
     Selling Stockholder has, and on the First Closing Date and the Second

                                      -11-
<PAGE>
 
     Closing Date (as defined below) will have, good and valid title to all of
     the Common Shares which may be sold by such Selling Stockholder pursuant to
     this Agreement on such date and the legal right and power, and all
     authorizations and approvals required by law to enter into this Agreement
     and its Custody Agreement and Power of Attorney, to sell, transfer and
     deliver all of the Common Shares which may be sold by such Selling
     Stockholder pursuant to this Agreement and to comply with its other
     obligations hereunder and thereunder.

        (d) Delivery of the Common Shares to be Sold. Delivery of the Common
     Shares which are sold by such Selling Stockholder pursuant to this
     Agreement will pass good and valid title to such Common Shares, free and
     clear of any security interest, mortgage, pledge, lien, encumbrance or
     other claim.

        (e) Non-Contravention; No Further Authorizations or Approvals Required.
     The execution and delivery by such Selling Stockholder of, and the
     performance by such Selling Stockholder of its obligations under, this
     Agreement, the Custody Agreement and the Power of Attorney will not
     contravene or conflict with, result in a breach of, or constitute a Default
     under, or require the consent of any other party to any agreement or
     instrument to which such Selling Stockholder is a party or by which he is
     bound or under which he is entitled to any right or benefit, any provision
     of applicable law or any judgment, order, decree or regulation applicable
     to such Selling Stockholder of any court, regulatory body, administrative
     agency, governmental body or arbitrator having jurisdiction over such
     Selling Stockholder. No consent, approval, authorization or other order of,
     or registration or filing with, any court or other governmental authority
     or agency, is required for the consummation by such Selling Stockholder of
     the transactions contemplated in this Agreement, except such as have been
     obtained or made and are in full force and effect under the Securities Act,
     applicable state securities or blue sky laws and from the NASD.

        (f) No Registration or Other Similar Rights. Such Selling Stockholder
     does not have any registration or other similar rights to have any equity
     or debt securities registered for sale by the Company under the
     Registration Statement or included in the offering contemplated by this
     Agreement.

        (g) No Further Consents, etc. No consent, approval or waiver is required
     under any instrument or agreement to which such Selling Stockholder is a
     party or by which he is bound or under which he is entitled to any right or
     benefit, in connection with the offering, sale or purchase by the
     Underwriters of any of the Common Shares which may be sold by such Selling
     Stockholder under this Agreement or the consummation by such Selling
     Stockholder of any of the other transactions contemplated hereby.

        (h)  Disclosure Made by Such Selling Stockholder in the Prospectus.  All
     information furnished by or on behalf of such Selling Stockholder in
     writing expressly for use in the Registration Statement and Prospectus is,
     and on the First Closing Date and the Second Closing Date will be, true,

                                      -12-
<PAGE>
 
     correct, and complete in all material respects, and does not, and on the
     First Closing Date and the Second Closing Date will not, contain any untrue
     statement of a material fact or omit to state any material fact necessary
     to make such information not misleading.  Such Selling Stockholder confirms
     as accurate the number of shares of Common Stock set forth opposite such
     Selling Stockholder's name and related footnote disclosure in the
     Prospectus under the caption "Principal and Selling Stockholders" (both
     prior to and after giving effect to the sale of the Common Shares).

        (i) No Price Stabilization or Manipulation. Such Selling Stockholder has
     not taken and will not take, directly or indirectly, any action designed to
     or that might be reasonably expected to cause or result in stabilization or
     manipulation of the price of the Common Stock to facilitate the sale or
     resale of the Common Shares.


        (j) Confirmation of Company Representations and Warranties. Such Selling
     Stockholder has no reason to believe that the representations and
     warranties of the Company contained in Section 1(A) hereof are not true and
     correct, is familiar with the Registration Statement and the Prospectus and
     has no knowledge of any material fact, condition or information not
     disclosed in the Registration Statement or the Prospectus which has had or
     may have a Material Adverse Effect and is not prompted to sell shares of
     Common Stock by any information concerning the Company which is not set
     forth in the Registration Statement and the Prospectus.

          Any certificate signed by or on behalf of any Selling Stockholder and
delivered to the Representative or to counsel for the Underwriters shall be
deemed to be a representation and warranty by such Selling Stockholder to each
Underwriter as to the matters covered thereby.

        SECTION  2.    PURCHASE, SALE AND DELIVERY OF THE COMMON SHARES.

        (a) The Firm Common Shares. Upon the terms herein set forth, (i) the
     Company agrees to issue and sell to the several Underwriters an aggregate
     of 3,500,000 Firm Common Shares and (ii) each of the Selling Stockholders
     agrees to sell to the several Underwriters an aggregate of 350,000 Firm
     Common Shares, each Selling Stockholder selling the number of Firm Common
     Shares set forth opposite such Selling Stockholder's name on Schedule B.
                                                                  ----------  
     On the basis of the representations, warranties and agreements herein
     contained, and upon the terms but subject to the conditions herein set
     forth, the Underwriters agree, severally and not jointly, to purchase from
     the Company and the Selling Stockholders the respective number of Firm
     Common Shares set forth opposite their names on Schedule A.  The purchase
                                                     ----------               
     price per Firm Common Share to be paid by the several Underwriters to the
     Company and the Selling Stockholders shall be $[___] per share.

        (b) The First Closing Date. Delivery of certificates for the Firm Common
     Shares to be purchased by the Underwriters and payment therefor shall be
     made at the offices of Pennsylvania Merchant Group Ltd, Four Falls
     Corporate Center, West Conshohocken, Pennsylvania (or such other place as
     may be agreed to by the Company and the Representative) at 9:00 a.m. New
     York time, on [___], or such other time and date not later than 1:30 p.m.

                                      -13-
<PAGE>
 
     New York time, on [___] as the Representative shall designate by notice to
     the Company (the time and date of such closing are called the "First
     Closing Date"). The Company and the Selling Stockholders hereby acknowledge
     that circumstances under which the Representative may provide notice to
     postpone the First Closing Date as originally scheduled include, but are in
     no way limited to, any determination by the Company, the Selling
     Stockholders or the Representative to recirculate to the public copies of
     an amended or supplemented Prospectus or a delay as contemplated by the
     provisions of Section 10.

        (c) The Optional Common Shares; the Second Closing Date. In addition, on
     the basis of the representations, warranties and agreements herein
     contained, and upon the terms but subject to the conditions herein set
     forth, the Company hereby grants an option to the several Underwriters to
     purchase, severally and not jointly, up to an aggregate of 577,500 Optional
     Common Shares from the Company at the purchase price per share to be paid
     by the Underwriters for the Firm Common Shares. The option granted
     hereunder is for use by the Underwriters solely in covering any over-
     allotments in connection with the sale and distribution of the Firm Common
     Shares. The option granted hereunder may be exercised at any time (but not
     more than once) upon notice by the Representative to the Company, which
     notice may be given at any time within 30 days from the date of this
     Agreement. Such notice shall set forth (i) the aggregate number of Optional
     Common Shares as to which the Underwriters are exercising the option,
     (ii) the names and denominations in which the certificates for the Optional
     Common Shares are to be registered and (iii) the time, date and place at
     which such certificates will be delivered (which time and date may be
     simultaneous with, but not earlier than, the First Closing Date; and in
     such case the term "First Closing Date" shall refer to the time and date of
     delivery of certificates for the Firm Common Shares and the Optional Common
     Shares). Such time and date of delivery, if subsequent to the First Closing
     Date, is called the "Second Closing Date" and shall be determined by the
     Representative and shall not be earlier than three nor later than five full
     business days after delivery of such notice of exercise. If any Optional
     Common Shares are to be purchased, (a) each Underwriter agrees, severally
     and not jointly, to purchase the number of Optional Common Shares (subject
     to such adjustments to eliminate fractional shares as the Representative
     may determine) that bears the same proportion to the total number of
     Optional Common Shares to be purchased as the number of Firm Common Shares
     set forth on Schedule A opposite the name of such Underwriter bears to the
                  ----------                                                   
     total number of Firm Common Shares and (b) the Company agrees to sell such
     number of Optional Common Shares as provided in the aforementioned notice
     from the Underwriters.  The Representative may cancel the option at any
     time prior to its expiration by giving written notice of such cancellation
     to the Company.

        (d) Public Offering of the Common Shares. The Representative hereby
     advises the Company and the Selling Stockholders that the Underwriters
     intend to offer for sale to the public, as described in the Prospectus,
     their respective portions of the Common Shares as soon after this Agreement
     has been executed and the Registration Statement has been declared
     effective as the Representative, in its sole judgment, has determined is
     advisable and practicable.

                                      -14-
<PAGE>
 
    
        (e) Payment for the Common Shares. Payment for the Common Shares to be
     sold by the Company shall be made at the First Closing Date (and, if
     applicable, at the Second Closing Date) by wire transfer of immediately
     available funds to the order of the Company. Payment for the Common Shares
     to be sold by the Selling Stockholders shall be made at the First Closing
     Date by wire transfer of immediately available funds to each of the 
     respective Selling Stockholders, as appropriate.      

               It is understood that the Representative has been authorized, for
     its own account and the accounts of the several Underwriters, to accept
     delivery of and receipt for, and make payment of the purchase price for,
     the Firm Common Shares and any Optional Common Shares the Underwriters have
     agreed to purchase.  Pennsylvania Merchant Group Ltd, individually and not
     as the Representative of the Underwriters, may (but shall not be obligated
     to) make payment for any Common Shares to be purchased by any Underwriter
     whose funds shall not have been received by the Representative by the First
     Closing Date or the Second Closing Date, as the case may be, for the
     account of such Underwriter, but any such payment shall not relieve such
     Underwriter from any of its obligations under this Agreement.
    
               Each Selling Stockholder hereby agrees that he or she will pay
     all stock transfer taxes, stamp duties and other similar taxes, if any,
     payable upon the sale or delivery of the Common Shares to be sold by such
     Selling Stockholder to the several Underwriters, or otherwise in connection
     with the performance of such Selling Stockholder's obligations hereunder.

        (f) Delivery of the Common Shares. The Company and the Selling
     Stockholders shall deliver, or cause to be delivered, to the Representative
     for the accounts of the several Underwriters certificates for the Firm
     Common Shares to be sold by them at the First Closing Date, against the
     irrevocable release of a wire transfer of immediately available funds for
     the amount of the purchase price therefor. The Company shall also deliver,
     or cause to be delivered, to the Representative for the accounts of the
     several Underwriters, certificates for the Optional Common Shares the
     Underwriters have agreed to purchase from the Company at the First Closing
     Date or the Second Closing Date, as the case may be, against the
     irrevocable release of a wire transfer of immediately available funds for
     the amount of the purchase price therefor. The certificates for the Common
     Shares shall be in definitive form and registered in such names and
     denominations as the Representative shall have requested at least two full
     business days prior to the First Closing Date (or the Second Closing Date,
     as the case may be) and shall be made available for inspection on the
     business day preceding the First Closing Date (or the Second Closing Date,
     as the case may be) at a location in Philadelphia, Pennsylvania as the
     Representative may designate. Time shall be of the essence, and delivery at
     the time and place specified in this Agreement is a further condition to
     the obligations of the Underwriters.      

                                      -15-
<PAGE>
 
     
        (g) Delivery of Prospectus to the Underwriters. Not later than 12:00
     p.m. on the second business day following the date the Common Shares are
     released by the Underwriters for sale to the public, the Company shall
     deliver or cause to be delivered copies of the Prospectus in such
     quantities and at such places as the Representative shall request.      

SECTION  3. ADDITIONAL COVENANTS OF THE COMPANY AND THE SELLING STOCKHOLDERS.

        A. COVENANTS OF THE COMPANY. The Company further covenants and agrees
with each Underwriter as follows:

        (a) Representative's Review of Proposed Amendments and Supplements.
     During such period beginning on the date hereof and ending on the later of
     the First Closing Date or such date, as in the opinion of counsel for the
     Underwriters, the Prospectus is no longer required by law to be delivered
     in connection with sales by an Underwriter or dealer (the "Prospectus
     Delivery Period"), prior to amending or supplementing the Registration
     Statement (including any registration statement filed under Rule 462(b)
     under the Securities Act) or the Prospectus, the Company shall furnish to
     the Representative for review a copy of each such proposed amendment or
     supplement, and the Company shall not file any such proposed amendment or
     supplement to which the Representative reasonably objects.

        (b) Securities Act Compliance. After the date of this Agreement, the
     Company shall promptly advise the Representative in writing (i) of the
     receipt of any comments of, or requests for additional or supplemental
     information from, the Commission, (ii) of the time and date of any filing
     of any post-effective amendment to the Registration Statement or any
     amendment or supplement to any preliminary prospectus or the Prospectus,
     (iii) of the time and date that any post-effective amendment to the
     Registration Statement becomes effective and (iv) of the issuance by the
     Commission of any stop order suspending the effectiveness of the
     Registration Statement or any post-effective amendment thereto or of any
     order preventing or suspending the use of any preliminary prospectus or the
     Prospectus, or of any proceedings to remove, suspend or terminate from
     listing or quotation the Common Stock from any securities exchange upon
     which the it is listed for trading or included or designated for quotation,
     or of the threatening or initiation of any proceedings for any of such
     purposes. If the Commission shall enter any such stop order at any time,
     the Company will use its best efforts to obtain the lifting of such order
     at the earliest possible moment. Additionally, the Company agrees that it
     shall comply with the provisions of Rules 424(b), 430A and 434, as
     applicable, under the Securities Act and will use its reasonable efforts to
     confirm that any filings made by the Company under such Rule 424(b) were
     received in a timely manner by the Commission.

        (c) Amendments and Supplements to the Prospectus and Other Securities
     Act Matters. If, during the Prospectus Delivery Period, any event shall
     occur or condition exist as a result of which it is necessary to amend or

                                      -16-
<PAGE>
 
     supplement the Prospectus in order to make the statements therein, in the
     light of the circumstances when the Prospectus is delivered to a purchaser,
     not misleading, or if in the opinion of the Representative or counsel for
     the Underwriters it is otherwise necessary to amend or supplement the
     Prospectus to comply with law, the Company agrees to promptly prepare
     (subject to Section 3(A)(a) hereof), file with the Commission and furnish
     at its own expense to the Underwriters and to dealers, amendments or
     supplements to the Prospectus so that the statements in the Prospectus as
     so amended or supplemented will not, in the light of the circumstances when
     the Prospectus is delivered to a purchaser, be misleading or so that the
     Prospectus, as amended or supplemented, will comply with law.

        (d) Copies of any Amendments and Supplements to the Prospectus. The
     Company agrees to furnish the Representative, without charge, during the
     Prospectus Delivery Period, as many copies of the Prospectus and any
     amendments and supplements thereto as the Representative may request.

        (e) Blue Sky Compliance. The Company shall cooperate with the
     Representative and counsel for the Underwriters to qualify or register the
     Common Shares for sale under (or obtain exemptions from the application of)
     the state securities or blue sky laws or Canadian provincial Securities
     laws of those jurisdictions designated by the Representative, shall comply
     with such laws and shall continue such qualifications, registrations and
     exemptions in effect so long as required for the distribution of the Common
     Shares. The Company shall not be required to qualify as a foreign
     corporation or to take any action that would subject it to general service
     of process in any such jurisdiction where it is not presently qualified or
     where it would be subject to taxation as a foreign corporation. The Company
     will advise the Representative promptly of the suspension of the
     qualification or registration of (or any such exemption relating to) the
     Common Shares for offering, sale or trading in any jurisdiction or any
     initiation or threat of any proceeding for any such purpose, and in the
     event of the issuance of any order suspending such qualification,
     registration or exemption, the Company shall use its best efforts to obtain
     the withdrawal thereof at the earliest possible moment.

        (f) Use of Proceeds. The Company shall apply the net proceeds from the
     sale of the Common Shares sold by it in the manner described under the
     caption "Use of Proceeds" in the Prospectus.

        (g) Transfer Agent. The Company shall maintain, at its expense, a
     registrar and transfer agent for the Common Stock.

        (h)  Earnings Statement.  As soon as practicable, the Company will make
     generally available to its security holders and to the Representative an
     earnings statement (which need not be audited) covering the twelve-month
     period ending at the end of the Company's first fiscal quarter that ends
     more than one year after the effectiveness of the Registration Statement
     and satisfying the provisions of Section 11(a) of the Securities Act.

                                      -17-
<PAGE>
 
        (i) Periodic Reporting Obligations. During the Prospectus Delivery
     Period the Company shall file, on a timely basis, with the Commission all
     reports and documents required to be filed under the Exchange Act.

        (j) Agreement Not To Offer or Sell Additional Securities. During the
     period of 180 days following the date of the Prospectus, the Company will
     not, without the prior written consent of Pennsylvania Merchant Group Ltd
     (which consent may be withheld at the sole discretion of Pennsylvania
     Merchant Group Ltd), directly or indirectly, sell, offer, contract or grant
     any option to sell, pledge, transfer or establish an open "put equivalent
     position" within the meaning of Rule 16a-1(h) under the Exchange Act, or
     otherwise dispose of or transfer, or announce the offering of, or file any
     registration statement under the Securities Act in respect of, any shares
     of Common Stock, options or warrants to acquire shares of the Common Stock
     or securities exchangeable or exercisable for or convertible into shares of
     Common Stock (other than as contemplated by this Agreement with respect to
     the Common Shares); provided, however, that the Company may issue shares of
     its Common Stock or options to purchase its Common Stock, or Common Stock
     upon exercise of options, pursuant to any stock option, stock bonus or
     other stock plan or arrangement described in the Prospectus, but only if
     the holders of such shares, options, or shares issued upon exercise of such
     options, agree in writing not to sell, offer, dispose of or otherwise
     transfer any such shares or options during such 180 day period without the
     prior written consent of Pennsylvania Merchant Group Ltd (which consent may
     be withheld at the sole discretion of the Pennsylvania Merchant Group Ltd).

        (k) Future Reports to the Representative. During the period of five
     years hereafter the Company will furnish to the Representative at Four
     Falls Corporate Center, West Conshohocken, Pennsylvania 19428, Attention:
     Richard A. Hansen: (i) as soon as practicable after the end of each fiscal
     year, copies of the Annual Report of the Company containing the balance
     sheet of the Company as of the close of such fiscal year and statements of
     income, stockholders' equity and cash flows for the year then ended and the
     opinion thereon of the Company's independent public or certified public
     accountants; (ii) as soon as practicable after the filing thereof, copies
     of each proxy statement, Annual Report on Form 10-K, Quarterly Report on
     Form 10-Q, Current Report on Form 8-K or other report filed by the Company
     with the Commission, the NASD or any securities exchange; and (iii) as soon
     as available, copies of any report or communication of the Company mailed
     generally to holders of its capital stock.


        B. COVENANTS OF THE SELLING STOCKHOLDERS. Each Selling Stockholder
further covenants and agrees with each Underwriter:

        (a)  Agreement Not to Offer or Sell Additional Securities.  Such Selling
     Stockholder will not, without the prior written consent of Pennsylvania
     Merchant Group Ltd (which consent may be withheld in its sole discretion),
     directly or indirectly, sell, offer, contract or grant any option to sell
     (including without limitation any short sale), pledge, transfer, establish
     an open "put equivalent position" within the meaning of Rule 16a-1(h) under

                                      -18-
<PAGE>
 
     the Exchange Act, or otherwise dispose of any shares of Common Stock,
     options or warrants to acquire shares of Common Stock, or securities
     exchangeable or exercisable for or convertible into shares of Common Stock
     currently or hereafter owned either of record or beneficially (as defined
     in Rule 13d-3 under Securities Exchange Act of 1934, as amended) by the
     undersigned, or publicly announce the undersigned's intention to do any of
     the foregoing, for a period commencing on the date hereof and continuing
     through the close of trading on the date 180 days after the date of the
     Prospectus.

        (b) Delivery of Forms W-8 and W-9. To deliver to the Representative
     prior to the First Closing Date a properly completed and executed United
     States Treasury Department Form W-8 (if the Selling Stockholder is a non-
     United States person) or Form W-9 (if the Selling Stockholder is a United
     States Person).
    
          The Representative, on behalf of the several Underwriters, may, in its
sole discretion, waive in writing the performance by the Company or any Selling
Stockholder of any one or more of the foregoing covenants or extend the time for
their performance, except that the Representative shall not extend the offer or 
sales prohibition set forth in the Agreement Not to Offer or Sell Additional 
Securities beyond the 180-day period established in Section 3(B)(a).     
    
        SECTION 4. PAYMENT OF EXPENSES. The Company agrees to pay all costs,
fees and expenses incurred in connection with the performance of its, and the
Selling Stockholders' Obligations hereunder and in connection with the
transactions contemplated hereby, including without limitation (i) all expenses
incident to the issuance and delivery of the Common Shares (including all
printing and engraving costs), (ii) all fees and expenses of the registrar and
transfer agent of the Common Stock, (iii) all necessary issue, transfer and
other stamp taxes in connection with the issuance and sale of the Common Shares
to the Underwriters, (iv) all fees and expenses of the Company's counsel,
independent public or certified public accountants and other advisors, (v) all
costs and expenses incurred in connection with the preparation, printing,
filing, shipping and distribution of the Registration Statement (including
financial statements, exhibits, schedules, consents and certificates of
experts), each preliminary prospectus and the Prospectus, and all amendments and
supplements thereto, and this Agreement, (vi) all filing fees, attorneys' fees
and expenses incurred by the Company or the Underwriters in connection with
qualifying or registering (or obtaining exemptions from the qualification or
registration of) all or any part of the Common Shares for offer and sale under
the state securities or blue sky laws or the provincial securities laws of
Canada, and, if requested by the Representative, preparing and printing a "Blue
Sky Survey" or memorandum, and any supplements thereto, advising the
Underwriters of such qualifications, registrations and exemptions, (vii) the
filing fees incident to, and the reasonable fees and expenses of counsel for the
Underwriters in connection with, the NASD's review and approval of the
Underwriters' participation in the offering and distribution of the Common
Shares, (viii) the fees and expenses associated with including the Common Shares
on the Nasdaq National Market, and (ix) all other fees, costs and expenses
referred to in Item 14 of Part II of the Registration Statement. Except as
provided in this Section 4, Section 6, Section 8 and Section 9 hereof, the
Underwriters shall pay their own expenses, including the fees and disbursements
of their counsel.     
                                      -19-
<PAGE>
 
          The Selling Stockholders further agree with each Underwriter to pay
(directly or by reimbursement) all fees and expenses incident to the performance
of their obligations under this Agreement which are not otherwise specifically
provided for herein, including but not limited to (i) fees and expenses of
counsel and other advisors for such Selling Stockholders, (ii) fees and expenses
of the Custodian and (iii) expenses and taxes incident to the sale and delivery
of the Common Shares to be sold by such Selling Stockholders to the Underwriters
hereunder (which taxes, if any, may be deducted by the Custodian under the
provisions of Section 2 of this Agreement).

          This Section 4 shall not affect or modify any separate, valid
agreement relating to the allocation of payment of expenses between the Company,
on the one hand, and the Selling Stockholders, on the other hand.

        SECTION 5. CONDITIONS OF THE OBLIGATIONS OF THE UNDERWRITERS. The
obligations of the several Underwriters to purchase and pay for the Common
Shares as provided herein on the First Closing Date and, with respect to the
Optional Common Shares, the Second Closing Date, shall be subject to the
accuracy of the representations and warranties on the part of the Company set
forth in Sections 1(A) and 1(B) hereof as of the date hereof and as of the First
Closing Date as though then made and, with respect to the Optional Common
Shares, as of the Second Closing Date as though then made, to the timely
performance by the Company and the Selling Stockholders of its their respective
covenants and other obligations hereunder, and to each of the following
additional conditions:

        (a) Accountants' Comfort Letter. On the date hereof, the Representative
     shall have received from KPMG Peat Marwick LLP, independent public or
     certified public accountants for the Company, a letter dated the date
     hereof addressed to the Underwriters, in form and substance satisfactory to
     the Representative, containing statements and information of the type
     ordinarily included in accountant's "comfort letters" to underwriters,
     delivered according to Statement of Auditing Standards No. 72 (or any
     successor bulletin), with respect to the audited and unaudited financial
     statements and certain financial information contained in the Registration
     Statement and the Prospectus (and the Representative shall have received an
     additional three (3) conformed copies of such accountants' letter). In
     addition, the Representative shall have received from KPMG Peat Marwick LLP
     a letter which sets forth the financial statement impact, if any, of the
     Company's issuance and sale of shares of Common Stock and warrants to
     purchase shares of Common Stock consummated on September 15, 1997.

        (b) Compliance with Registration Requirements; No Stop Order; No
     Objection from NASD. For the period from and after effectiveness of this
     Agreement and prior to the First Closing Date and, with respect to the
     Optional Common Shares, the Second Closing Date:

        (i) the Company shall have filed the Prospectus with the Commission
        (including the information required by Rule 430A under the Securities
        Act) in the manner and within the time period required by Rule 424(b)
        under the

                                      -20-
<PAGE>
 
     Securities Act; or the Company shall have filed a post-effective amendment
     to the Registration Statement containing the information required by such
     Rule 430A, and such post-effective amendment shall have become effective;
     or, if the Company elected to rely upon Rule 434 under the Securities Act
     and obtained the Representative's consent thereto, the Company shall have
     filed a Term Sheet with the Commission in the manner and within the time
     period required by such Rule 424(b);

        (ii) no stop order suspending the effectiveness of the Registration
        Statement, any Rule 462(b) Registration Statement, or any post-effective
        amendment to the Registration Statement, shall be in effect and no
        proceedings for such purpose shall have been instituted or threatened by
        the Commission; and

        (iii) the NASD shall have raised no objection to the fairness and
        reasonableness of the underwriting terms and arrangements.

        (c) No Material Adverse Change or Ratings Agency Change. For the period
     from and after the date of this Agreement and prior to the First Closing
     Date and, with respect to the Optional Common Shares, the Second Closing
     Date, in the judgment of the Representative there shall not have occurred
     any Material Adverse Change.

        (d) Opinion of Counsel for the Company. On each of the First Closing
     Date and the Second Closing Date the Representative shall have received the
     favorable opinion of Duane, Morris & Heckscher LLP, counsel for the
     Company, dated as of such Closing Date, the form of which is attached as
     Exhibit A (and the Representative shall have received an additional three
     ---------
     (3) conformed copies of such counsel's legal opinion).
         
        (e) Opinion of Counsel for the Underwriters. On each of the First
     Closing Date and the Second Closing Date the Representative shall have
     received the favorable opinion of Buchanan Ingersoll, counsel for the
     Underwriters, dated as of such Closing Date, with respect to the matters
     set forth in paragraphs (i), (vii) (with respect to subparagraph (i) only,
     (viii), (ix), (x), (xi), (xii) and (xiii) (with respect to the captions
     "Description of Capital Stock" and "Underwriting" under subparagraph (i)
     only) and the next-to-last paragraph of Exhibit A (and the
                                              ---------                     
     Representative shall have received an additional three (3) conformed copies
     of such counsel's legal opinion).     

        (f) Officers' Certificate. On each of the First Closing Date and the
     Second Closing Date the Representative shall have received a written
     certificate executed by the Chairman of the Board, Chief Executive Officer
     or President of the Company and the Chief Financial Officer or Chief
     Accounting Officer of the Company, dated as of such Closing Date, to the
     effect set forth in subsection (b)(ii) of this Section 5, and further to
     the effect that:
        
        (i) for the period from and after the date of this Agreement and prior
     to such Closing Date, there has not occurred any Material Adverse Change;

                                      -21-
<PAGE>
 
        (ii) the representations, warranties and covenants of the Company set
        forth in Section 1(A) of this Agreement are true and correct with the
        same force and effect as though expressly made on and as of such Closing
        Date; and

        (iii) the Company has complied with all the agreements and satisfied all
        the conditions on its part to be performed or satisfied at or prior to
        such Closing Date.

        (g) Bring-down Comfort Letter. On each of the First Closing Date and the
     Second Closing Date the Representative shall have received from KPMG Peat
     Marwick LLP, independent public or certified public accountants for the
     Company, a letter dated such date, in form and substance satisfactory to
     the Representative, to the effect that they reaffirm the statements made in
     the letter furnished by them pursuant to subsection (a) of this Section 5,
     except that the specified date referred to therein for the carrying out of
     procedures shall be no more than three business days prior to the First
     Closing Date or Second Closing Date, as the case may be (and the
     Representative shall have received an additional three (3) conformed copies
     of such accountants' letter).

        (h) Opinion of Counsel for the Selling Stockholders. On the First
     Closing Date the Representative shall have received the favorable opinion
     of Duane, Morris & Heckscher LLP, counsel for the Selling Stockholders,
     dated as of such Closing Date, the form of which is attached as Exhibit B
                                                                     ---------  
     (and the Representative shall have received an additional three (3)
     conformed copies of such counsel's legal opinion).

        (i) Selling Stockholders' Certificate. On each of the First Closing Date
     and the Second Closing Date the Representative shall have received a
     written certificate executed by each Selling Stockholder, dated as of such
     Closing Date, to the effect that:

        (i) the representations, warranties and covenants of such Selling
        Stockholder set forth in Section 1(B) of this Agreement are true and
        correct with the same force and effect as though expressly made by such
        Selling Stockholder on and as of such Closing Date; and

        (ii) such Selling Stockholder has complied with all the agreements and
        satisfied all the conditions on its part to be performed or satisfied at
        or prior to such Closing Date.

        (j) Selling Stockholders' Documents. On the date hereof, the Company and
     the Selling Stockholders shall have furnished for review by the
     Representative copies of the Powers of Attorney and Custody Agreements
     executed by each of the Selling Stockholders and such further information,
     certificates and documents as the Representative may reasonably request.
         
        (k) Lock-Up Agreement. On the date hereof, the Company shall have
     furnished to the Representative an agreement in the form of Exhibit C
                                                                 ---------
     hereto from each director, officer and Selling Stockholder of the Company,
     and such agreement shall be in full force and effect on each of the First
     Closing Date and the Second Closing Date.     

                                      -22-
<PAGE>
 
        (l) Expense Allowance. On the First Closing Date, the Representative
     shall have received from the Company the amount of $150,000 in payment of
     the agreed upon non-accountable expense allowance.

        (m) Additional Documents. On or before each of the First Closing Date
     and the Second Closing Date, the Representative and counsel for the
     Underwriters shall have received such information, documents and opinions
     as they may reasonably require for the purposes of enabling them to pass
     upon the issuance and sale of the Common Shares as contemplated herein, or
     in order to evidence the accuracy of any of the representations and
     warranties, or the satisfaction of any of the conditions or agreements,
     herein contained.

          If any condition specified in this Section 5 is not satisfied when and
as required to be satisfied, this Agreement may be terminated by the
Representative by notice to the Company and the Selling Stockholders at any time
on or prior to the First Closing Date and, with respect to the Optional Common
Shares by notice to the Company, at any time prior to the Second Closing Date,
which termination shall be without liability on the part of any party to any
other party, except that Section 4, Section 6, Section 8 and Section  9 shall at
all times be effective and shall survive such termination.
            
        SECTION 6. REIMBURSEMENT OF UNDERWRITERS' EXPENSES. If this Agreement is
terminated by the Representative pursuant to Section 5, Section 7, Section 11 or
Section 17, or if the sale to the Underwriters of the Common Shares on the First
Closing Date is not consummated because of any refusal, inability or failure on
the part of the Company or the Selling Stockholders to perform any agreement
herein or to comply with any provision hereof, the Company agrees to reimburse
the Representative and the other Underwriters (or such Underwriters as have
terminated this Agreement with respect to themselves), severally, upon demand
for all out-of-pocket expenses that shall have been reasonably incurred by the
Representative and the Underwriters in connection with the proposed purchase and
the offering and sale of the Common Shares, including but not limited to fees
and disbursements of counsel, printing expenses, travel expenses, postage,
facsimile and telephone charges.     

        SECTION 7. EFFECTIVENESS OF THIS AGREEMENT. This Agreement shall not
become effective until the later of (i) the execution of this Agreement by the
parties hereto and (ii) notification by the Commission to the Company and the
Representative of the effectiveness of the Registration Statement under the
Securities Act.

          Prior to such effectiveness, this Agreement may be terminated by any
party by notice to each of the other parties hereto, and any such termination
shall be without liability on the part of (a) the Company or the Selling
Stockholders to any Underwriter, except that the Company and the Selling
Stockholders shall be obligated to reimburse the expenses of the Representative
and the Underwriters pursuant to Sections 4 and 6 hereof, (b) of any Underwriter
to the Company or the Selling Stockholders, or (c) of any party hereto to any
other party except that the provisions of Section 8 and Section 9 shall at all
times be effective and shall survive such termination.

                                      -23-
<PAGE>
 
SECTION  8.    INDEMNIFICATION.

        (a) Indemnification of the Underwriters. The Company and each of the
     Selling Stockholders, jointly and severally, agrees to indemnify and hold
     harmless each Underwriter, its officers and employees, and each person, if
     any, who controls any Underwriter within the meaning of the Securities Act
     and the Exchange Act against any loss, claim, damage, liability or expense,
     as incurred, to which such Underwriter or such controlling person may
     become subject, under the Securities Act, the Exchange Act or other federal
     or state statutory law or regulation, or at common law or otherwise
     (including in settlement of any litigation, if such settlement is effected
     with the written consent of the Company), insofar as such loss, claim,
     damage, liability or expense (or actions in respect thereof as contemplated
     below) arises out of or is based (i) upon any untrue statement or alleged
     untrue statement of a material fact contained in the Registration
     Statement, or any amendment thereto, including any information deemed to be
     a part thereof pursuant to Rule 430A or Rule 434 under the Securities Act,
     or the omission or alleged omission therefrom of a material fact required
     to be stated therein or necessary to make the statements therein not
     misleading; or (ii) upon any untrue statement or alleged untrue statement
     of a material fact contained in any preliminary prospectus or the
     Prospectus (or any amendment or supplement thereto), or the omission or
     alleged omission therefrom of a material fact necessary in order to make
     the statements therein, in the light of the circumstances under which they
     were made, not misleading; or (iii) in whole or in part upon any inaccuracy
     in the representations and warranties of the Company or the Selling
     Stockholders contained herein; or (iv) in whole or in part upon any failure
     of the Company or the Selling Stockholders to perform their respective
     obligations hereunder or under law; or (v) any act or failure to act or any
     alleged act or failure to act by any Underwriter in connection with, or
     relating in any manner to, the Common Stock or the offering contemplated
     hereby, and which is included as part of or referred to in any loss, claim,
     damage, liability or action arising out of or based upon any matter covered
     by clause (i) or (ii) above, provided that the Company or any Selling
     Stockholder shall not be liable under this clause (v) to the extent that a
     court of competent jurisdiction shall have determined by a final judgment
     that such loss, claim, damage, liability or action resulted directly from
     any such acts or failures to act undertaken or omitted to be taken by such
     Underwriter through its gross negligence or willful misconduct; and to
     reimburse each Underwriter and each such controlling person for any and all
     expenses (including the fees and disbursements of counsel chosen by
     Pennsylvania Merchant Group Ltd) as such expenses are reasonably incurred
     by such Underwriter or such controlling person in connection with
     investigating, defending, settling, compromising or paying any such loss,
     claim, damage, liability, expense or action; provided, however, that the
     foregoing indemnity agreement shall not apply to any loss, claim, damage,
     liability or expense to the extent, but only to the extent, arising out of
     or based upon any untrue statement or alleged untrue statement or omission
     or alleged omission made in reliance upon and in conformity with written
     information furnished to the Company and the Selling Stockholders by the
     Underwriters expressly for use in the Registration Statement, any
     preliminary prospectus or the Prospectus (or any amendment or supplement
     thereto); and provided, further, that with respect to any preliminary

                                      -24-
<PAGE>
 
     prospectus, the foregoing indemnity agreement shall not inure to the
     benefit of any Underwriter from whom the person asserting any loss, claim,
     damage, liability or expense purchased Common Shares, or any person
     controlling such Underwriter, if copies of the Prospectus were timely
     delivered to the Underwriter pursuant to Section 2 and a copy of the
     Prospectus (as then amended or supplemented if the Company shall have
     furnished any amendments or supplements thereto) was not sent or given by
     or on behalf of such Underwriter to such person, if required by law so to
     have been delivered, at or prior to the written confirmation of the sale of
     the Common Shares to such person, and if the Prospectus (as so amended or
     supplemented) would have cured the defect giving rise to such loss, claim,
     damage, liability or expense.  Notwithstanding any provision herein to the
     contrary, the liability of each Selling Stockholder under this Agreement
     shall not exceed the net proceeds (before deducting offering expenses)
     received by such Selling Stockholder from the sale of Common Shares in this
     offering.  The indemnity agreement set forth in this Section 8(a) shall be
     in addition to any liabilities that the Company and the Selling
     Stockholders may otherwise have.

        (b)  Indemnification of the Company, its Directors and Officers.  Each
     Underwriter agrees, severally and not jointly, to indemnify and hold
     harmless the Company, each of its directors, each of its officers who
     signed the Registration Statement, the Selling Stockholders and each
     person, if any, who controls the Company or any Selling Stockholder within
     the meaning of the Securities Act or the Exchange Act, against any loss,
     claim, damage, liability or expense, as incurred, to which the Company, or
     any such director, officer, Selling Stockholder or controlling person may
     become subject, under the Securities Act, the Exchange Act, or other
     federal or state statutory law or regulation, or at common law or otherwise
     (including in settlement of any litigation, if such settlement is effected
     with the written consent of such Underwriter), insofar as such loss, claim,
     damage, liability or expense (or actions in respect thereof as contemplated
     below) arises out of or is based upon any untrue or alleged untrue
     statement of a material fact contained in the Registration Statement, any
     preliminary prospectus or the Prospectus (or any amendment or supplement
     thereto), or arises out of or is based upon the omission or alleged
     omission to state therein a material fact required to be stated therein or
     necessary to make the statements therein not misleading, in each case to
     the extent, but only to the extent, that such untrue statement or alleged
     untrue statement or omission or alleged omission was made in the
     Registration Statement, any preliminary prospectus, the Prospectus (or any
     amendment or supplement thereto), in reliance upon and in conformity with
     written information furnished to the Company and the Selling Stockholders
     by the Underwriters expressly for use therein; and to reimburse the
     Company, or any such director, officer, Selling Stockholder or controlling
     person for any legal and other expense reasonably incurred by the Company,
     or any such director, officer, Selling Stockholder or controlling person in
     connection with investigating, defending, settling, compromising or paying
     any such loss, claim, damage, liability, expense or action.  Each of the
     Company and each of the Selling Stockholders, hereby acknowledges that the
     only information that the Underwriters have furnished to the Company and
     the Selling Stockholders expressly for use in the Registration Statement,
     any preliminary prospectus or the Prospectus (or any amendment or

                                      -25-
<PAGE>
 
     supplement thereto) are the statements set forth (A) as the last two
     paragraphs on the inside front cover page of the Prospectus concerning
     stabilization and passive market making by the Underwriters and (B) in the
     table in the first paragraph and as the second, sixth and seventh
     paragraphs under the caption "Underwriting" in the Prospectus; and the
     Underwriters confirm that such statements are correct. The indemnity
     agreement set forth in this Section 8(b) shall be in addition to any
     liabilities that each Underwriter may otherwise have.

        (c) Notifications and Other Indemnification Procedures. Promptly after
     receipt by an indemnified party under this Section 8 of notice of the
     commencement of any action, such indemnified party will, if a claim in
     respect thereof is to be made against an indemnifying party under this
     Section 8, notify the indemnifying party in writing of the commencement
     thereof, but the omission so to notify the indemnifying party will not
     relieve it from any liability which it may have to any indemnified party
     for contribution or otherwise than under the indemnity agreement contained
     in this Section 8 or to the extent it is not prejudiced as a proximate
     result of such failure. In case any such action is brought against any
     indemnified party and such indemnified party seeks or intends to seek
     indemnity from an indemnifying party, the indemnifying party will be
     entitled to participate in, and, to the extent that it shall elect, jointly
     with all other indemnifying parties similarly notified, by written notice
     delivered to the indemnified party promptly after receiving the aforesaid
     notice from such indemnified party, to assume the defense thereof with
     counsel reasonably satisfactory to such indemnified party; provided,
     however, if the defendants in any such action include both the indemnified
     party and the indemnifying party and the indemnified party shall have
     reasonably concluded that a conflict may arise between the positions of the
     indemnifying party and the indemnified party in conducting the defense of
     any such action or that there may be legal defenses available to it and/or
     other indemnified parties which are different from or additional to those
     available to the indemnifying party, the indemnified party or parties shall
     have the right to select separate counsel to assume such legal defenses and
     to otherwise participate in the defense of such action on behalf of such
     indemnified party or parties.  Upon receipt of notice from the indemnifying
     party to such indemnified party of such indemnifying party's election so to
     assume the defense of such action and approval by the indemnified party of
     counsel, the indemnifying party will not be liable to such indemnified
     party under this Section 8 for any legal or other expenses subsequently
     incurred by such indemnified party in connection with the defense thereof
     unless (i) the indemnified party shall have employed separate counsel in
     accordance with the proviso to the next preceding sentence (it being
     understood, however, that the indemnifying party shall not be liable for
     the expenses of more than one separate counsel (together with local
     counsel), approved by the indemnifying party (Pennsylvania Merchant Group
     Ltd in the case of Section 8(b) and Section 9), representing the
     indemnified parties who are parties to such action) or (ii) the
     indemnifying party shall not have employed counsel satisfactory to the
     indemnified party to represent the indemnified party within a reasonable
     time after notice of commencement of the action, in each of which cases the
     fees and expenses of counsel shall be at the expense of the indemnifying
     party.

                                      -26-
<PAGE>
 
        (d) Settlements. The indemnifying party under this Section 8 shall not
     be liable for any settlement of any proceeding effected without its written
     consent, but if settled with such consent or if there be a final judgment
     for the plaintiff, the indemnifying party agrees to indemnify the
     indemnified party against any loss, claim, damage, liability or expense by
     reason of such settlement or judgment. Notwithstanding the foregoing
     sentence, if at any time an indemnified party shall have requested an
     indemnifying party to reimburse the indemnified party for fees and expenses
     of counsel as contemplated by Section 8(c) hereof, the indemnifying party
     agrees that it shall be liable for any settlement of any proceeding
     effected without its written consent if (i) such settlement is entered into
     more than 30 days after receipt by such indemnifying party of the aforesaid
     request and (ii) such indemnifying party shall not have reimbursed the
     indemnified party in accordance with such request prior to the date of such
     settlement. No indemnifying party shall, without the prior written consent
     of the indemnified party, effect any settlement, compromise or consent to
     the entry of judgment in any pending or threatened action, suit or
     proceeding in respect of which any indemnified party is or could have been
     a party and indemnity was or could have been sought hereunder by such
     indemnified party, unless such settlement, compromise or consent includes
     an unconditional release of such indemnified party from all liability on
     claims that are the subject matter of such action, suit or proceeding.

        SECTION 9. CONTRIBUTION. If the indemnification provided for in
Section 8 is for any reason held to be unavailable to or otherwise insufficient
to hold harmless an indemnified party in respect of any losses, claims, damages,
liabilities or expenses referred to therein, then each indemnifying party shall
contribute to the aggregate amount paid or payable by such indemnified party, as
incurred, as a result of any losses, claims, damages, liabilities or expenses
referred to therein (i) in such proportion as is appropriate to reflect the
relative benefits received by the Company and the Selling Stockholders, on the
one hand, and the Underwriters, on the other hand, from the offering of the
Common Shares pursuant to this Agreement or (ii) if the allocation provided by
clause (i) above is not permitted by applicable law, in such proportion as is
appropriate to reflect not only the relative benefits referred to in clause (i)
above but also the relative fault of the Company and the Selling Stockholders,
on the one hand, and the Underwriters, on the other hand, in connection with the
statements or omissions or inaccuracies in the representations and warranties
herein which resulted in such losses, claims, damages, liabilities or expenses,
as well as any other relevant equitable considerations. The relative benefits
received by the Company and the Selling Stockholders, on the one hand, and the
Underwriters, on the other hand, in connection with the offering of the Common
Shares pursuant to this Agreement shall be deemed to be in the same respective
proportions as the total net proceeds from the offering of the Common Shares
pursuant to this Agreement (before deducting expenses) received by the Company
and the Selling Stockholders, and the total underwriting discount received by
the Underwriters, in each case as set forth on the front cover page of the
Prospectus (or, if Rule 434 under the Securities Act is used, the corresponding
location on the Term Sheet) bear to the aggregate initial public offering price
of the Common Shares as set forth on such cover. The relative fault of the
Company and the Selling Stockholders, on the one hand, and the Underwriters, on
the other hand, shall be determined by reference to, among other things, whether
any such untrue or alleged untrue statement of a material fact or omission or

                                      -27-
<PAGE>
 
alleged omission to state a material fact or any such inaccurate or alleged
inaccurate representation or warranty relates to information supplied by the
Company or the Selling Stockholders, on the one hand, or the Underwriters, on
the other hand, and the parties' relative intent, knowledge, access to
information and opportunity to correct or prevent such statement or omission.

          The amount paid or payable by a party as a result of the losses,
claims, damages, liabilities and expenses referred to above shall be deemed to
include, subject to the limitations set forth in Section 8(c), any legal or
other fees or expenses reasonably incurred by such party in connection with
investigating or defending any action or claim.  The provisions set forth in
Section 8(c) with respect to notice of commencement of any action shall apply if
a claim for contribution is to be made under this Section 9; provided, however,
that no additional notice shall be required with respect to any action for which
notice has been given under Section 8(c) for purposes of indemnification.

          The Company, the Selling Stockholders and the Underwriters agree that
it would not be just and equitable if contribution pursuant to this Section 9
were determined by pro rata allocation (even if the Underwriters were treated as
one entity for such purpose) or by any other method of allocation which does not
take account of the equitable considerations referred to in this Section 9.

          Notwithstanding the provisions of this Section 9, no Underwriter shall
be required to contribute any amount in excess of the underwriting commissions
received by such Underwriter in connection with the Common Shares underwritten
by it and distributed to the public.  No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation.  The Underwriters' obligations to contribute
pursuant to this Section 9 are several, and not joint, in proportion to their
respective underwriting commitments as set forth opposite their names in
Schedule A.  For purposes of this Section 9, each officer and employee of an
- ----------                                                                  
Underwriter and each person, if any, who controls an Underwriter within the
meaning of the Securities Act and the Exchange Act shall have the same rights to
contribution as such Underwriter, and each director of the Company, each officer
of the Company who signed the Registration Statement, and each person, if any,
who controls the Company within the meaning of the Securities Act and the
Exchange Act shall have the same rights to contribution as the Company.

        SECTION 10. DEFAULT OF ONE OR MORE OF THE SEVERAL UNDERWRITERS. If, on
the First Closing Date or the Second Closing Date, as the case may be, any one
or more of the several Underwriters shall fail or refuse to purchase Common
Shares that it or they have agreed to purchase hereunder on such date, and the
aggregate number of Common Shares which such defaulting Underwriter or
Underwriters agreed but failed or refused to purchase does not exceed 10% of the
aggregate number of the Common Shares to be purchased on such date, the other
Underwriters shall be obligated, severally, in the proportions that the number
of Firm Common Shares set forth opposite their respective names on Schedule A
                                                                   ----------
bears to the aggregate number of Firm Common Shares set forth opposite the names
of all such non-defaulting Underwriters, or in such other proportions as may be
specified by the Representative, to purchase the Common Shares which such

                                      -28-
<PAGE>
 
     
defaulting Underwriter or Underwriters agreed but failed or refused to purchase
on such date. If, on the First Closing Date or the Second Closing Date, as the
case may be, any one or more of the Underwriters shall fail or refuse to
purchase Common Shares and the aggregate number of Common Shares with respect to
which such default occurs exceeds 10% of the aggregate number of Common Shares
to be purchased on such date, and arrangements satisfactory to the non-
defaulting Underwriters and the Company for the purchase of such Common Shares
are not made within 48 hours after such default, this Agreement shall terminate
without liability of any party (except any defaulting Underwriter as set forth
in the following paragraph) to any other party except that the provisions of
Section 4, Section 6, Section 8 and Section 9 shall at all times be effective
and shall survive such termination. In any such case either the non-defaulting
Underwriters or the Company shall have the right to postpone the First Closing
Date or the Second Closing Date, as the case may be, but in no event for longer
than seven days in order that the required changes, if any, to the Registration
Statement and the Prospectus or any other documents or arrangements may be
effected.     

          As used in this Agreement, the term "Underwriter" shall be deemed to
include any person substituted for a defaulting Underwriter under this
Section 10.  Any action taken under this Section 10 shall not relieve any
defaulting Underwriter from liability in respect of any default of such
Underwriter under this Agreement.

        SECTION 11. TERMINATION OF THIS AGREEMENT. Prior to the First Closing
Date this Agreement may be terminated by the Representative by notice given to
the Company and the Selling Stockholders if at any time (i) trading or quotation
in any of the Company's securities shall have been suspended or limited by the
Commission or by the Nasdaq Stock Market, or trading in securities generally on
either the Nasdaq Stock Market or the New York Stock Exchange shall have been
suspended or limited, or minimum or maximum prices shall have been generally
established on any of such stock exchanges by the Commission or the NASD; (ii) a
general banking moratorium shall have been declared by any of federal, New York
or Delaware authorities; (iii) there shall have occurred any outbreak or
escalation of national or international hostilities or any crisis or calamity,
or any change in the United States or international financial markets, or any
substantial change or development involving a prospective substantial change in
United States' or international political, financial or economic conditions, as
in the judgment of the Representative is material and adverse and makes it
impracticable to market the Common Shares in the manner and on the terms
described in the Prospectus or to enforce contracts for the sale of securities;
(iv) in the judgment of the Representative there shall have occurred any
Material Adverse Change; or (v) the Company shall have sustained a loss by
strike, fire, flood, earthquake, accident or other calamity of such character as
in the judgment of the Representative may interfere materially with the conduct
of the business and operations of the Company regardless of whether or not such
loss shall have been insured. Any termination pursuant to this Section 11 shall
be without liability on the part of (a) the Company or the Selling Stockholders
to any Underwriter, except that the Company and the Selling Stockholders shall
be obligated to reimburse the expenses of the Representative and the
Underwriters pursuant to Sections 4 and 6 hereof, (b)  any Underwriter to the
Company or the Selling Stockholders, or (c) of any party hereto to any other
party except that the provisions of Section 8 and Section 9 shall at all times
be effective and shall survive such termination.

                                      -29-
<PAGE>
 
        SECTION 12. REPRESENTATIONS AND INDEMNITIES TO SURVIVE DELIVERY. The
respective indemnities, agreements, representations, warranties and other
statements of the Company, of its officers, of the Selling Stockholders and of
the several Underwriters set forth in or made pursuant to this Agreement will
remain in full force and effect, regardless of any investigation made by or on
behalf of any Underwriter or the Company or any of its or their partners,
officers or directors or any controlling person, or the Selling Stockholders, as
the case may be, and will survive delivery of and payment for the Common Shares
sold hereunder and any termination of this Agreement.

        SECTION 13. NOTICES. All communications hereunder shall be in writing
and shall be mailed, hand delivered or telecopied and confirmed to the parties
hereto as follows: 

If to the Representative:

     Pennsylvania Merchant Group Ltd
     Four Falls Corporate Center
     West Conshohocken, Pennsylvania 19428-2961
     Facsimile:  610-260-6230
     Attention:  Richard A. Hansen

     with a copy to:

     Buchanan Ingersoll
     500 College Road East
     Princeton, New Jersey 08540
     Facsimile:  609-520-0360
     Attention:  David J. Sorin, Esq.

If to the Company:

     Petroleum Development Corporation
     103 East Main Street
     Bridgeport, West Virginia 26330
     Facsimile:  304-842-6256
     Attention:  Steven R. Williams

     with a copy to:

     Duane, Morris & Heckscher LLP
     1667 K. Street, N.W., Suite 700
     Washington, DC  20006-1608
     Facsimile:  202-776-7801
     Attention:  Laurence S. Lese, Esq.

                                      -30-
<PAGE>
 
If to the Selling Stockholders:

     Duane, Morris & Heckscher LLP
     1667 K. Street, N.W., Suite 700
     Washington, DC  20006-1608
     Facsimile:  202-776-7801
     Attention:  Laurence S. Lese, Esq.

Any party hereto may change the address for receipt of communications by giving
written notice to the others.

        SECTION 14. SUCCESSORS. This Agreement will inure to the benefit of and
be binding upon the parties hereto, including any substitute Underwriters
pursuant to Section 10 hereof, and to the benefit of the employees, officers and
directors and controlling persons referred to in Section 8 and Section 9, and in
each case their respective successors, [and personal representatives], and no
other person will have any right or obligation hereunder. The term "successors"
shall not include any purchaser of the Common Shares as such from any of the
Underwriters merely by reason of such purchase.

        SECTION 15. PARTIAL UNENFORCEABILITY. The invalidity or unenforceability
of any Section, paragraph or provision of this Agreement shall not affect the
validity or enforceability of any other Section, paragraph or provision hereof.
If any Section, paragraph or provision of this Agreement is for any reason
determined to be invalid or unenforceable, there shall be deemed to be made such
minor changes (and only such minor changes) as are necessary to make it valid
and enforceable.

        SECTION 16. GOVERNING LAW PROVISIONS. THIS AGREEMENT SHALL BE GOVERNED
BY AND CONSTRUED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF NEW YORK
APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED IN SUCH STATE.

        SECTION 17. FAILURE OF ONE OR MORE OF THE SELLING STOCKHOLDERS TO SELL
AND DELIVER COMMON SHARES. If one or more of the Selling Stockholders shall fail
to sell and deliver to the Underwriters the Common Shares to be sold and
delivered by such Selling Stockholders at the First Closing Date pursuant to
this Agreement, then the Underwriters may at their option, by written notice
from the Representative to the Company and the Selling Stockholders, either
(i) terminate this Agreement without any liability on the part of any
Underwriter or, except as provided in Sections 4, 6, 8 and 9 hereof, the Company
or the Selling Stockholders, or (ii) purchase the shares which the Company and
other Selling Stockholders have agreed to sell and deliver in accordance with
the terms hereof. If one or more of the Selling Stockholders shall fail to sell
and deliver to the Underwriters the Common Shares to be sold and delivered by
such Selling Stockholders pursuant to this Agreement at the First Closing Date
or the Second Closing Date, then the Underwriters shall have the right, by
written notice from the Representative to the Company and the Selling
Stockholders, to postpone the First Closing Date or the Second Closing Date, as
the case may be, but in no event for longer than seven days in order that the
required

                                      -31-
<PAGE>
 
changes, if any, to the Registration Statement and the Prospectus or any other
documents or arrangements may be effected.

        SECTION 18. GENERAL PROVISIONS. This Agreement constitutes the entire
agreement of the parties to this Agreement and supersedes all prior written or
oral and all contemporaneous oral agreements, understandings and negotiations
with respect to the subject matter hereof. This Agreement may be executed in two
or more counterparts, each one of which shall be an original, with the same
effect as if the signatures thereto and hereto were upon the same instrument.
This Agreement may not be amended or modified unless in writing by all of the
parties hereto, and no condition herein (express or implied) may be waived
unless waived in writing by each party whom the condition is meant to benefit.
The Section headings herein are for the convenience of the parties only and
shall not affect the construction or interpretation of this Agreement.

          Each of the parties hereto acknowledges that it is a sophisticated
business person who was adequately represented by counsel during negotiations
regarding the provisions hereof, including, without limitation, the
indemnification provisions of Section 8 and the contribution provisions of
Section 9, and is fully informed regarding said provisions.  Each of the parties
hereto further acknowledges that the provisions of Sections 8 and 9 hereto
fairly allocate the risks in light of the ability of the parties to investigate
the Company, its affairs and its business in order to assure that adequate
disclosure has been made in the Registration Statement, any preliminary
prospectus and the Prospectus (and any amendments and supplements thereto), as
required by the Securities Act and the Exchange Act.

                               * * * * * * * * *

                                      -32-
<PAGE>
 
          If the foregoing is in accordance with your understanding of our
agreement, kindly sign and return to the Company and the Custodian the enclosed
copies hereof, whereupon this instrument, along with all counterparts hereof,
shall become a binding agreement in accordance with its terms.

                                         Very truly yours,

                                         PETROLEUM DEVELOPMENT CORPORATION
                                             
                                         By:
                                            ------------------------------
                                            Name: Steven R. Williams
                                            Title: President

                                         SELLING STOCKHOLDERS

 
                                         ---------------------------------------
                                         Sandra B. Ryan or Attorney-in-Fact     
        
                                          
                                         ---------------------------------------
                                         Steven R. Williams or Attorney-in-Fact

 
                                         ---------------------------------------
                                         Dale G. Rettinger or Attorney-in-Fact

 
                                         ---------------------------------------
                                         Thomas E. Riley or Attorney-in-Fact

          The foregoing Underwriting Agreement is hereby confirmed and accepted
by the Representative in West Conshohocken, Pennsylvania as of the date first
above written.

PENNSYLVANIA MERCHANT GROUP LTD

Acting as Representative of the
several Underwriters named in
the attached Schedule A.

BY: PENNSYLVANIA MERCHANT GROUP LTD

By:
   ----------------------------
   P. S. Rawlings

                                      -33-
<PAGE>
 
                                   SCHEDULE A

            Underwriters                                 NUMBER OF FIRM
                                                        COMMON SHARES TO
                                                          BE PURCHASED
Pennsylvania Merchant Group Ltd....................           [   ]
 
 
                                                         ---------------
     Total.........................................         3,850,000



<PAGE>
 
                                   SCHEDULE 

       Selling Stockholder                          NUMBER OF FIRM
                                                   COMMON SHARES TO
                                                        BE SOLD
    
Sandra B. Ryan     
c/o Petroleum Development Corporation
103 East Main Street
Bridgeport, West Virginia 26330.............            100,000

Steven R. Williams                                            
c/o Petroleum Development Corporation
103 East Main Street
Bridgeport, West Virginia 26330.............            100,000

Dale G. Rettinger                                       
c/o Petroleum Development Corporation
103 East Main Street
Bridgeport, West Virginia 26330.............            100,000

Thomas E. Riley                                                
c/o Petroleum Development Corporation
103 East Main Street
Bridgeport, West Virginia 26330.............             50,000
                                                  -------------------
     Total:.................................            350,000



<PAGE>
 
                                                                       EXHIBIT A

                    OPINION OF DUANE, MORRIS & HECKSCHER LLP
                           AS COUNSEL TO THE COMPANY

          Opinion of counsel for the Company to be delivered pursuant to
Section 5(d) of the Underwriting Agreement.

          References to the Prospectus in this Exhibit A include any supplements
                                               ---------                        
thereto at the Closing Date.

        (i) The Company has been duly incorporated and is validly existing as a
corporation in good standing under the laws of the State of Nevada.

        (ii) The Company has corporate power and authority to own, lease and
operate its properties and to conduct its business as described in the
Prospectus and to enter into and perform its obligations under the Underwriting
Agreement.

        (iii) The Company is duly qualified as a foreign corporation to transact
business and is in good standing in the State of Nevada and in each other
jurisdiction in which such qualification is required, whether by reason of the
ownership or leasing of property or the conduct of business, except for such
jurisdictions (other than the State of Nevada) where the failure to so qualify
or to be in good standing would not, individually or in the aggregate, result in
a Material Adverse Change.

        (iv) Each significant subsidiary (as defined in Rule 405 under the
Securities Act) has been duly incorporated and is validly existing as a
corporation in good standing under the laws of the jurisdiction of its
incorporation, has corporate power and authority to own, lease and operate its
properties and to conduct its business as described in the Prospectus and, to
the best knowledge of such counsel, is duly qualified as a foreign corporation
to transact business and is in good standing in each jurisdiction in which such
qualification is required, whether by reason of the ownership or leasing of
property or the conduct of business, except for such jurisdictions where the
failure to so qualify or to be in good standing would not, individually or in
the aggregate, result in a Material Adverse Change.

        (v) All of the issued and outstanding capital stock of each such
significant subsidiary has been duly authorized and validly issued, is fully
paid and non-assessable and is owned by the Company, directly or through
subsidiaries, free and clear of any security interest, mortgage, pledge, lien,
encumbrance or, to the best knowledge of such counsel, any pending or threatened
claim.

                                      A-1
<PAGE>
 
        (vi) The authorized, issued and outstanding capital stock of the Company
(including the Common Stock) conform to the descriptions thereof set forth in
the Prospectus. All of the outstanding shares of Common Stock (including the
shares of Common Stock owned by Selling Stockholders) have been duly authorized
and validly issued, are fully paid and nonassessable and, to the best of such
counsel's knowledge, have been issued in compliance with the registration and
qualification requirements of federal and state securities laws. The form of
certificate used to evidence the Common Stock is in due and proper form and
complies with all applicable requirements of the charter and by-laws of the
Company and the Revised Statutes of the State of Nevada. The description of the
Company's stock option, stock bonus and other stock plans or arrangements, and
the options or other rights granted and exercised thereunder, set forth in the
Prospectus accurately and fairly presents the information required to be shown
with respect to such plans, arrangements, options and rights.

        (vii) No stockholder of the Company or any other person has any
preemptive right, right of first refusal or other similar right to subscribe for
or purchase securities of the Company arising (i) by operation of the charter or
by-laws of the Company or the Revised Statutes of the State of Nevada or (ii)
to the best knowledge of such counsel, otherwise.

        (viii) The Underwriting Agreement has been duly authorized, executed and
delivered by, and is a valid and binding agreement of, the Company, enforceable
in accordance with its terms, except as rights to indemnification thereunder may
be limited by applicable law and except as the enforcement thereof may be
limited by bankruptcy, insolvency, reorganization, moratorium or other similar
laws relating to or affecting creditors' rights generally or by general
equitable principles.

        (ix) The Common Shares to be purchased by the Underwriters from the
Company have been duly authorized for issuance and sale pursuant to the
Underwriting Agreement and, when issued and delivered by the Company pursuant to
the Underwriting Agreement against payment of the consideration set forth
therein, will be validly issued, fully paid and nonassessable.

        (x) Each of the Registration Statement and the Rule 462(b) Registration
Statement, if any, has been declared effective by the Commission under the
Securities Act. To the best knowledge of such counsel, no stop order suspending
the effectiveness of either of the Registration Statement or the Rule 462(b)
Registration Statement, if any, has been issued under the Securities Act and no
proceedings for such purpose have been instituted or are pending or are
contemplated or threatened by the Commission. Any required filing of the
Prospectus and any supplement thereto pursuant to Rule 424(b) under the
Securities Act has been made in the manner and within the time period required
by such Rule 424(b).

        (xi) The Registration Statement, including any Rule 462(b) Registration
Statement, the Prospectus, and each amendment or supplement to the Registration
Statement and the Prospectus, as of their respective effective or issue dates
(other than the financial statements and

                                      A-2
<PAGE>
 
supporting schedules included or incorporated by reference therein or in
exhibits to or excluded from the Registration Statement, as to which no opinion
need be rendered) comply as to form in all material respects with the applicable
requirements of the Securities Act.

        (xii) The Common Shares have been approved for listing on the Nasdaq
National Market.
    
        (xiii) The statements (i) in the Prospectus under the captions "Risk
Factors--Governmental Regulation", "--Anti-Takeover Provisions", "--Shares
Eligible for Future Sale", "Management's Discussion and Analysis and Results of
Operations--Liquidity", "Business--Governmental Regulation", "Business--Legal
Proceedings", "Certain Transactions", "Description of Capital Stock", "Shares
Eligible for Future Sale" and "Underwriting" and (ii) in Item 15 of the
Registration Statement, insofar as such statements constitute matters of law,
summaries of legal matters, the Company's charter or by-law provisions,
documents or legal proceedings, or legal conclusions, has been reviewed by such
counsel and fairly present and summarize, in all material respects, the matters
referred to therein.     

        (xiv) To the best knowledge of such counsel, there are no legal or
governmental actions, suits or proceedings pending or threatened which are
required to be disclosed in the Registration Statement, other than those
disclosed therein.

        (xv) To the best knowledge of such counsel, there are no Existing
Instruments required to be described or referred to in the Registration
Statement or to be filed as exhibits thereto other than those described or
referred to therein or filed or incorporated by reference as exhibits thereto;
and the descriptions thereof and references thereto are correct in all material
respects.

        (xvi) No consent, approval, authorization or other order of, or
registration or filing with, any court or other governmental authority or
agency, is required for the Company's execution, delivery and performance of the
Underwriting Agreement and consummation of the transactions contemplated thereby
and by the Prospectus, except as required under the Securities Act, applicable
state securities or blue sky laws and from the NASD.

        (xvii) The execution and delivery of the Underwriting Agreement by the
Company and the performance by the Company of its obligations thereunder (other
than performance by the Company of its obligations under the indemnification
section of the Underwriting Agreement, as to which no opinion need be rendered)
(i) have been duly authorized by all necessary corporate action on the part of
the Company; (ii) will not result in any violation of the provisions of the
charter or by-laws of the Company or any subsidiary; (iii) will not constitute a
breach of, or Default under, or result in the creation or imposition of any
lien, charge or encumbrance upon any property or assets of the Company or any of
its subsidiaries pursuant to, (A) the Company's Credit Agreement with First
National Bank of Chicago, as lender, or (B) to the best knowledge of such

                                      A-3
<PAGE>
 
counsel, any other material Existing Instrument; or (iv) to the best knowledge
of such counsel, will not result in any violation of any law, administrative
regulation or administrative or court decree applicable to the Company or any
subsidiary.

        (xviii) The Company is not, and after receipt of payment for the Common
Shares will not be, an "investment company" within the meaning of Investment
Company Act.

        (xix) Except as disclosed in the Prospectus under the caption "Shares
Eligible for Future Sale" to the best knowledge of such counsel, there are no
persons with registration or other similar rights to have any equity or debt
securities registered for sale under the Registration Statement or included in
the offering contemplated by the Underwriting Agreement.

        (xx) To the best knowledge of such counsel, neither the Company nor any
subsidiary is in violation of its charter or by-laws or any law, administrative
regulation or administrative or court decree applicable to the Company or any
subsidiary or is in Default in the performance or observance of any obligation,
agreement, covenant or condition contained in any material Existing Instrument,
except in each such case for such violations or Defaults as would not,
individually or in the aggregate, result in a Material Adverse Change.

          In addition, such counsel shall state that they have participated in
conferences with officers and other representatives of the Company,
representatives of the independent public or certified public accountants for
the Company and with representatives of the Underwriters at which the contents
of the Registration Statement and the Prospectus, and any supplements or
amendments thereto, and related matters were discussed and, although such
counsel is not passing upon and does not assume any responsibility for the
accuracy, completeness or fairness of the statements contained in the
Registration Statement or the Prospectus (other than as specified above), and
any supplements or amendments thereto, on the basis of the foregoing, nothing
has come to their attention which would lead them to believe that either the
Registration Statement or any amendments thereto, at the time the Registration
Statement or such amendments became effective, contained an untrue statement of
a material fact or omitted to state a material fact required to be stated
therein or necessary to make the statements therein not misleading or that the
Prospectus, as of its date or at the First Closing Date or the Second Closing
Date, as the case may be, contained an untrue statement of a material fact or
omitted to state a material fact necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading (it being understood that such counsel need express no belief as to
the financial statements or schedules or other financial or statistical data
derived therefrom, included in the Registration Statement or the Prospectus or
any amendments or supplements thereto).
    
          In rendering such opinion, such counsel may rely (A) as to matters
involving the application of laws of any jurisdiction other than the Business
Laws of the Commonwealth of Pennsylvania or the federal law of the United
States, to the extent they deem proper and specified in such opinion, upon the
opinion (which shall be dated the First Closing Date or the Second Closing Date,
as the case may be, shall be satisfactory     

                                      A-4
<PAGE>
 
in form and substance to the Underwriters, shall expressly state
that the Underwriters may rely on such opinion as if it were addressed to them
and shall be furnished to the Representative) of other counsel of good standing
whom they believe to be reliable and who are satisfactory to counsel for the
Underwriters; provided, however, that such counsel shall further state that they
believe that they and the Underwriters are justified in relying upon such
opinion of other counsel, and (B) as to matters of fact, to the extent they deem
proper, on certificates of responsible officers of the Company and public
officials.

                                      A-5
<PAGE>
 
                                                                       EXHIBIT B

                    OPINION OF DUANE, MORRIS & HECKSCHER LLP
                    AS COUNSEL FOR THE SELLING STOCKHOLDERS

          The opinion of such counsel pursuant to Section 5(h) shall be rendered
to the Representative at the request of the Company and shall so state therein.
References to the Prospectus in this Exhibit B include any supplements thereto
                                     ---------                                
at the Closing Date.

        (i) The Underwriting Agreement has been duly authorized, executed and
delivered by or on behalf of, and is a valid and binding agreement of, such
Selling Stockholder, enforceable in accordance with its terms, except as rights
to indemnification thereunder may be limited by applicable law and except as the
enforcement thereof may be limited by bankruptcy, insolvency, reorganization,
moratorium or other similar laws relating to or affecting creditors' rights
generally or by general equitable principles.

        (ii) The execution and delivery by such Selling Stockholder of, and the
performance by such Selling Stockholder of his obligations under, the
Underwriting Agreement and his Custody Agreement and its Power of Attorney will
not contravene or conflict with, result in a breach of, or constitute a default
under any agreement of such Selling Stockholder, or, to the best of such
counsel's knowledge, violate or contravene any provision of applicable law or
regulation, or violate, result in a breach of or constitute a default under the
terms of any other agreement or instrument to which such Selling Stockholder is
a party or by which it is bound, or any judgment, order or decree applicable to
such Selling Stockholder of any court, regulatory body, administrative agency,
governmental body or arbitrator having jurisdiction over such Selling
Stockholder.

        (iii) Such Selling Stockholder has good and valid title to all of the
Common Shares which may be sold by such Selling Stockholder under the
Underwriting Agreement and has the legal right and power, and all authorizations
and approvals required to enter into the Underwriting Agreement and its Custody
Agreement and its Power of Attorney, to sell, transfer and deliver all of the
Common Shares which may sold by such Selling Stockholder under the Underwriting
Agreement and to comply with his other obligations under the Underwriting
Agreement, its Custody Agreement and its Power of Attorney.

        (iv) Each of the Custody Agreement and Power of Attorney of such Selling
Stockholder has been duly authorized, executed and delivered by such Selling
Stockholder and is a valid and binding agreement of such Selling Stockholder,
enforceable in accordance with its terms, except as rights to indemnification
thereunder may be limited by applicable law and except as the enforcement
thereof may be limited by bankruptcy, insolvency, reorganization, moratorium or
other similar laws relating to or affecting creditors' rights generally or by
general equitable principles.

                                      B-1
<PAGE>
 
        (v) Assuming that the Underwriters purchase the Common Shares which are
sold by such Selling Stockholder pursuant to the Underwriting Agreement for
value, in good faith and without notice of any adverse claim, the delivery of
such Common Shares pursuant to the Underwriting Agreement will pass good and
valid title to such Common Shares, free and clear of any security interest,
mortgage, pledge, lien encumbrance or other claim.

        (vi) To the best of such counsel's knowledge, no consent, approval,
authorization or other order of, or registration or filing with, any court or
governmental authority or agency, is required for the consummation by such
Selling Stockholder of the transactions contemplated in the Underwriting
Agreement, except as required under the Securities Act, applicable state
securities or blue sky laws, and from the NASD.
    
          In rendering such opinion, such counsel may rely (A) as to matters
involving the application of laws of any jurisdiction other than the laws of the
Commonwealth of Pennsylvania or the federal law of the United States, to the
extent they deem proper and specified in such opinion, upon the opinion (which
shall be dated the First Closing Date or the Second Closing Date, as the case
may be, shall be satisfactory in form and substance to the Underwriters, shall
expressly state that the Underwriters may rely on such opinion as if it were
addressed to them and shall be furnished to the Representative) of other counsel
of good standing whom they believe to be reliable and who are satisfactory to
counsel for the Underwriters; provided, however, that such counsel shall further
state that they believe that they and the Underwriters are justified in relying
upon such opinion of other counsel, and (B) as to matters of fact, to the extent
they deem proper, on certificates of the Selling Stockholders and public
officials.     

                                      B-2
<PAGE>
 
                                                                       EXHIBIT C

                              [Date]
    
Pennsylvania Merchant Group Ltd
    As Representative of the Several Underwriters     
Four Falls Corporate Center
West Conshohocken, Pennsylvania  19428-2961

     RE: ______________________ (the "Company")

Ladies & Gentlemen:
              
          The undersigned is an owner of record or beneficially of certain
shares of Common Stock of the Company ("Common Stock") or securities convertible
into or exchangeable or exercisable for Common Stock. The Company proposes to
carry out a public offering of Common Stock (the "Offering") for which you will
act as the representative of the underwriters. The undersigned recognizes that
the Offering will be of benefit to the undersigned and will benefit the Company
by, among other things, raising additional capital for its operations. The
undersigned acknowledges that you and the other underwriters are relying on the
representations and agreements of the undersigned contained in this letter in
carrying out the Offering and in entering into underwriting arrangements with
the Company with respect to the Offering.     

          In consideration of the foregoing, the undersigned hereby agrees that
the undersigned will not, without the prior written consent of Pennsylvania
Merchant Group Ltd (which consent may be withheld in its sole discretion),
directly or indirectly, sell, offer, contract or grant any option to sell
(including without limitation any short sale), pledge, transfer, establish an
open "put equivalent position" within the meaning of Rule 16a-1(h) under the
Securities Exchange Act of 1934, or otherwise dispose of any shares of Common
Stock, options or warrants to acquire shares of Common Stock, or securities
exchangeable or exercisable for or convertible into shares of Common Stock
currently or hereafter owned either of record or beneficially (as defined in
Rule 13d-3 under Securities Exchange Act of 1934, as amended) by the
undersigned, or publicly announce the undersigned's intention to do any of the
foregoing, for a period commencing on the date hereof and continuing through the
close of trading on the date 180 days after the date of the Prospectus. The
undersigned also agrees and consents to the entry of stop transfer instructions
with the Company's transfer agent and registrar against the transfer of shares
of Common Stock or securities convertible into or exchangeable or exercisable
for Common Stock held by the undersigned except in compliance with the foregoing
restrictions.

                                      C-1
<PAGE>
 
          With respect to the Offering only, the undersigned waives any
registration rights relating to registration under the Securities Act of any
Common Stock owned either of record or beneficially by the undersigned,
including any rights to receive notice of the Offering.

          This agreement is irrevocable and will be binding on the undersigned
and the respective successors, heirs, personal representatives, and assigns of
the undersigned.

 

_____________________________________
Printed Name of Holder


By: _________________________________
    Signature

 
_____________________________________
Printed Name of Person Signing
(and indicate capacity of person signing if
signing as custodian, trustee, or on behalf
of an entity)


                                      C-2

<PAGE>
 
                                                                 Exhibit 23.2




                         Independent Auditors' Consent
                         -----------------------------


The Board of Directors
Petroleum Development Corporation:

We consent to the use of our audit report dated March 13, 1997 on the
consolidated financial statements of Petroleum Development Corporation and
subsidiaries as of December 31, 1996 and 1995, and for each of the years in the
three-year period ended December 31, 1996 included herein and to the reference
to our firm under the heading "Experts" in the prospectus.



                                                       /s/ KPMG Peat Marwick LLP


Pittsburgh, Pennsylvania
October 24, 1997





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