PETROGLYPH ENERGY INC
10-K, 1998-03-27
CRUDE PETROLEUM & NATURAL GAS
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                UNITED STATES SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                            -------------------------

                                    FORM 10-K
                            -------------------------
(Mark One)
     [X]          ANNUAL  REPORT   PURSUANT  TO  SECTION  13  OR  15(d)  OF  THE
                  SECURITIES  EXCHANGE  ACT OF 1934 For the  fiscal  year  ended
                  December 31, 1997

                  OR

     [ ]          TRANSITION  REPORT  PURSUANT  TO SECTION 13 OR 15(d) OF THE
                  SECURITIES EXCHANGE ACT OF 1934 For the transition period from
                  ____________________ to ____________________

                        Commission file number: 000-23185

                             PETROGLYPH ENERGY, INC.


             (Exact name of Registrant as Specified in its Charter)



               Delaware                                 74-2826234
- ------------------------------------             ------------------------
    (State or other jurisdiction of                  (I.R.S. Employer
    incorporation or organization)                  Identification No.)

         6209 North Highway 61
          Hutchinson, Kansas                               67502
          -------------------                          -----------
(Address of principal executive offices)                (Zip Code)

                                 (316) 665-8500
              (Registrant's telephone number, including area code)




          Securities registered pursuant to Section 12(b) of the Act:



                                                Name of Each Exchange on
          Title of Each Class                        Which Registered
- -----------------------------------     --------------------------------------
                 None                                      None




          Securities registered pursuant to Section 12(g) of the Act:
                          Common Stock, $.01 par value

                                (Title of Class)

     Indicate by check mark  whether the  Registrant:  (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
Registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes X No


     Indicate by check mark if disclosure of delinquent  filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of Registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

     As of March 25, 1998, the Registrant had  outstanding  5,458,333  shares of
Common  Stock.   The  aggregate  market  value  of  the  Common  Stock  held  by
non-affiliates  of the  Registrant,  based  upon the  closing  sale price of the
Common Stock on March 25, 1998, as reported on the Nasdaq National  Market,  was
approximately $23,625,000.


                       DOCUMENTS INCORPORATED BY REFERENCE

     Portions of the definitive proxy statement for the Registrant's 1998 Annual
Meeting  of  Stockholders  to be held  on May  27,  1998,  are  incorporated  by
reference in Part III of this Form 10-K. Such definitive proxy statement will be
filed  with the  Securities  and  Exchange  Commission  not later  than 120 days
subsequent to December 31, 1997.


<PAGE>

                                TABLE OF CONTENTS
                                -----------------
                                                                            Page
                                                                            ----
                                     PART I

Item 1.  Business..............................................................1

Item 2.  Properties............................................................6

Item 3.  Legal Proceedings....................................................10

Item 4.  Submission of Matters to a Vote of Security Holders..................11

                                    PART II

Item 5.  Market for Registrant's Common Equity and Related Stockholder 
         Matters..............................................................12

Item 6.  Selected Financial Data..............................................13

Item 7.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations........................................................14

Item 8.  Financial Statements and Supplementary Data..........................25

Item 9.  Changes in and Disagreements with Accountants on Accounting and 
         Financial Disclosure.................................................26

                                    PART III

Item 10. Directors and Executive Officers of the Registrant...................26

Item 11. Executive Compensation...............................................26

Item 12. Security Ownership of Certain Beneficial Owners and Management.......26

Item 13. Certain Relationships and Related Party Transaction..................26

                                    PART IV

Item 14. Exhibits, Financial Statement Schedules and Reports on Form 10-K.....26

Glossary of Oil and Natural Gas Terms.........................................29

Signatures....................................................................32

Index to Combined Financial Statements.......................................F-1

                                       i
<PAGE>


                             PETROGLYPH ENERGY, INC.

                         1997 ANNUAL REPORT ON FORM 10-K

                                     PART I

     As used herein,  references to the Company or Petroglyph  are to Petroglyph
Energy,  Inc. and its predecessors and  subsidiaries,  including  Petroglyph Gas
Partners,  L.P.  Certain terms  relating to the oil and natural gas industry are
defined in "Glossary of Oil and Gas Terms."

ITEM 1.     BUSINESS

Overview

     Petroglyph is an  independent  energy company  engaged in the  exploration,
development  and  acquisition  of crude oil and natural gas reserves.  Since its
inception in 1993, the Company has grown through leasehold  acquisitions  which,
together with associated  development and exploratory  drilling,  have increased
the Company's proved reserves,  production, revenue and cash flow. The Company's
primary  activities  are  focused  in the  Uinta  Basin  in  Utah,  where  it is
implementing  enhanced oil recovery  projects in the Lower Green River formation
of the Greater Monument Butte Region. The Company anticipates spending up to $15
million in 1998 in connection  with these  projects.  The Company has identified
several  other  formations  in the Uinta  Basin  above and below the Lower Green
River  formation  that  it  believes  have  the  potential  to  be  commercially
productive.  The Company  recently  acquired  63,000  gross and net acres in the
Raton  Basin in  Colorado  and  plans to  spend  up to $5.5  million  in 1998 to
initiate a pilot coalbed  methane  project  intended to determine the commercial
viability  of  development  of this area.  In  addition,  the Company has a 100%
working  interest in 5,079 gross and net acres in the Helen Gohlke field located
within the Wilcox Trend in the Gulf Coast Region of South Texas.  The Company is
currently  reviewing  the  results of a 3-D seismic  survey of this  acreage and
intends to drill with an  industry  partner at least three gross (1.5 net) wells
on this acreage during 1998.

     In November 1997,  Petroglyph  completed its initial  public  offering (the
"Offering")  of  2,625,000  shares,  including  125,000  shares  subject  to the
underwriters'  over-allotment  option,  of  common  stock at $12.50  per  share,
resulting  in net  proceeds  to the  Company  of  approximately  $30.5  million.
Approximately  $10.0  million of the net  proceeds  were used to  eliminate  all
outstanding  amounts under the Company's Credit  Agreement,  with the balance of
the proceeds to be utilized to develop  production and reserves primarily in the
Company's core Uinta Basin and Raton Basin development  properties and for other
working capital needs.

     As of December 31, 1997,  the Company had estimated net proved  reserves of
approximately  9.5 MMBbls of oil and 20.7 Bcf of natural gas, or an aggregate of
12.9 MMBOE with a PV-10 of $43.4  million.  Of the  Company's  estimated  proved
reserves,  97% are located in the Uinta Basin. At December 31, 1997, the Company
had a total acreage position of approximately  116,000 gross (106,000 net) acres
and  estimates  that it had over 1,000  potential  drilling  locations  based on
current  spacing,  approximately  80 of  which  are  included  in the  Company's
independent petroleum engineers' estimate of proved reserves.

     The Company's strategy is to increase its oil and natural gas reserves, oil
and natural gas production  and cash flow per share through (i) the  development
of its drillsite inventory,  (ii) the exploitation of its existing reserve base,
(iii) the control of operations of its core  properties and (iv) the acquisition
of additional property interests.

                                       1

<PAGE>


     The  Company  was formed in 1997 for the  purpose of  becoming  the holding
company for Petroglyph Gas Partners,  L.P., pursuant to the terms of an exchange
agreement  dated August 22, 1997.  Petroglyph  Gas Partners,  L.P. was formed in
1993 and grew  primarily  through  acquisition of oil and natural gas properties
and the development of such properties. Under the exchange agreement,  effective
upon  consummation of the Offering,  (i) the limited partners of the partnership
transferred  all of  their  limited  partnership  interests  to the  Company  in
exchange  for an  aggregate  of  2,607,349  shares of Common  Stock and (ii) the
stockholders of the general partner of Petroglyph Gas Partners, L.P. transferred
all of the issued and outstanding stock of the general partner to the Company in
exchange for an aggregate of 225,984 shares of Common Stock.  These transactions
are referred to as the  "Conversion." As a result of the Conversion,  Petroglyph
Energy,  Inc. owns,  directly or indirectly,  all the  partnership  interests in
Petroglyph  Gas  Partners,  L.P.  References  to the "Company" are to Petroglyph
Energy,  Inc. and its predecessors and  subsidiaries,  including  Petroglyph Gas
Partners, L.P.

     The  Company  is  incorporated  in the  State of  Delaware,  its  principal
executive offices are located at 6209 North Highway 61, Hutchinson, Kansas 67502
and its telephone number is (316) 665-8500.

Marketing Arrangements

     The price  received by the  Company for its oil and natural gas  production
depends on numerous factors beyond the Company's control, including seasonality,
the  condition of the United  States  economy,  particularly  the  manufacturing
sector,  the level and  availability of foreign imports of crude oil,  political
conditions in other  oil-producing  countries,  the actions of OPEC and domestic
government regulation,  legislation and policies. Decreases in the prices of oil
and  natural  gas could  have an  adverse  effect on the  carrying  value of the
Company's  proved reserves and the Company's  revenues,  profitability  and cash
flow.

     In  June  1994,  the  Company  entered  into a  contract  to  sell  its oil
production   from  certain  leases  of  its  Utah   properties  to  an  industry
participant.  The price  under  this  contract  is agreed  upon  monthly  and is
generally based on such purchaser's  posted prices.  This contract will continue
in effect until terminated by either party upon giving proper notice. During the
years ended  December  31,  1997,  1996 and 1995,  the  volumes  sold under this
contract totaled  approximately 74 MBbls, 61 MBbls and 101 MBbls,  respectively,
at an average  sales  price per Bbl for each year of $14.80,  $19.33 and $17.09,
respectively.

     In July 1997,  the Company  entered  into a  modification  of its crude oil
sales  contract  to sell its black wax crude oil  production  from the  Antelope
Creek field to a major oil  company at a price equal to posting,  less an agreed
upon  adjustment  to cover  handling and  gathering  costs.  This  contract will
continue in effect until  terminated by either  party.  In addition to the sales
contract  discussed  above, the purchaser has the option under an Oil Production
Call  Agreement  to  purchase  all or any portion of the oil  produced  from the
Antelope  Creek  field  at the  current  market  price.  The  option  has no set
expiration date.

     In June 1997,  the Company  entered into a crude oil contract to sell black
wax  production  from certain of its oil tank  batteries  in the Antelope  Creek
Field in Utah to a refinery.  This contract is effective  until May 31, 1998 and
calls for the  Company  to  receive a price  equal to the  current  month  NYMEX
closing  price for sweet  crude,  averaged  over the month in which the crude is
sold, less an agreed upon  adjustment.  Volumes sold under this contract totaled
73 MBbls at an average price of $14.50 for the year ended December 31, 1997.

Hedging Activities

     The Company  historically  has used various  financial  instruments such as
collars,  swaps and futures contracts in an attempt to manage its price risk for
a  portion  of the  Company's  crude oil and  natural  gas  production.  Monthly
settlements on these  financial  instruments  are typically based on differences
between the fixed prices  specified in the instruments and the settlement  price
of certain future  contracts  quoted on the NYMEX or certain other indices.  The
instruments  that  have been  historically  used by the  Company  have not had a
contractual  obligation which requires or allows the future physical delivery of
the hedged products. While use of these hedging arrangements limits the downside
risk of price declines,  such  arrangements also limit the benefits which may be
derived from price increases.

     Approximately  309 MBbls of the Company's  expected oil production  through
December 31, 1999 is subject to collars with a NYMEX floor price of $17.00 and a
ceiling price of $20.75 based on NYMEX pricing.

                                       2

<PAGE>


     The  Company  monitors  oil markets and the  Company's  actual  performance
compared  to the  estimates  used in  entering  into  hedging  arrangements.  If
material  variations occur from those anticipated when a hedging  arrangement is
made,  the  Company  takes  actions   intended  to  minimize  any  risk  through
appropriate  market  actions.  The Company  attempts  to manage its  exposure to
counterparty   nonperformance   risk  through  the   selection  of   financially
responsible counterparties.

Acquisitions

     The Company  expects that it will evaluate and may pursue from time to time
acquisitions in the Uinta Basin, the Raton Basin and in other areas that provide
attractive investment  opportunities for the addition of production and reserves
and that meet the Company's  selection criteria.  The successful  acquisition of
producing   properties  and  undeveloped   acreage  requires  an  assessment  of
recoverable reserves,  future oil and natural gas prices,  capital and operating
costs,  potential  environmental  and other liabilities and other factors beyond
the Company's control.  This assessment is necessarily  inexact and its accuracy
is inherently  uncertain.  In connection  with such an  assessment,  the Company
performs  a  review  of the  subject  properties  it  believes  to be  generally
consistent with industry practices.  This review,  however,  will not reveal all
existing  or  potential  problems,   nor  will  it  permit  a  buyer  to  become
sufficiently familiar with the properties to assess fully their deficiencies and
capabilities. Inspections may not be performed on every well, and structural and
environmental problems are not necessarily observable even when an inspection is
undertaken.  The  Company  may be  required  to assume  preclosing  liabilities,
including  environmental  liabilities,  and generally  acquires interests in the
properties on an "as is" basis.

Competition

     The Company operates in the highly competitive areas of oil and natural gas
exploration, exploitation, acquisition and production with other companies, many
of which have substantially larger financial resources,  operations,  staffs and
facilities.  In seeking to acquire desirable producing  properties or new leases
for future exploration and in marketing its oil and natural gas production,  the
Company  faces  competition  from  other oil and  natural  gas  companies.  Such
companies may be able to pay more for  productive oil and natural gas properties
and  exploratory  prospects  and to  define,  evaluate,  bid for and  purchase a
greater number of properties and prospects than the Company's financial or human
resources  permit.  In addition,  recent heavy drilling  activity by a number of
operators in the Uinta Basin may reduce or limit the  availability  of equipment
and  supplies or reduce  demand for the  Company's  production,  either of which
would impact the Company more adversely than if the Company were  geographically
diversified.

Drilling and Operating Risks

     Oil and  natural  gas  drilling  activities  are  subject  to  many  risks,
including  the  risk  that  no  commercially   productive   reservoirs  will  be
encountered.  There can be no  assurance  that new wells  drilled by the Company
will be  productive  or that the Company  will recover all or any portion of its
investment.  Drilling for oil and natural gas may involve unprofitable  efforts,
not only from dry holes,  but from wells that are  productive but do not produce
sufficient net revenues to return a profit after drilling, completion, operating
and  other  costs,  including  the  costs of  improved  recovery  and  gathering
facilities.  The cost of  drilling,  completing  and  operating  production  and
injection wells is often uncertain.  In addition,  the Company's use of enhanced
oil  recovery  techniques  for  its  Uinta  Basin  properties  requires  greater
development  expenditures than alternative  primary  production  strategies.  In
order to accomplish enhanced oil recovery, the Company expects to drill a number
of injection wells to utilize waterflood technology in the future. The Company's
waterflood   program   involves   greater  risk  of  mechanical   problems  than
conventional  development  programs.  The Company's  drilling  operations may be
curtailed,  delayed or canceled as a result of numerous  factors,  many of which
are beyond the Company's control, including economic conditions, title problems,
water shortages,  weather  conditions,  compliance with  governmental and tribal
requirements  and shortages or delays in the delivery of equipment and services.
The  Company's  future  drilling  activities  may  not  be  successful  and,  if
unsuccessful, may have a material adverse effect on the Company's future results
of operations and financial condition.

                                       3

<PAGE>


     The  Company's  operations  are  subject to hazards  and risks  inherent in
drilling  for,  producing and  transporting  oil and natural gas, such as fires,
natural disasters, explosions,  encountering formations with abnormal pressures,
blowouts,  cratering,  pipeline ruptures and spills,  any of which can result in
the loss of hydrocarbons,  environmental  pollution,  personal injury claims and
other damage to  properties  of the Company and others.  As  protection  against
operating  hazards,  the Company maintains  insurance coverage against some, but
not all, potential losses. The Company may elect to self-insure in circumstances
in which management believes that the cost of insurance,  although available, is
excessive  relative to the risks  presented.  The occurrence of an event that is
not  covered,  or not fully  covered,  by  third-party  insurance  could  have a
material  adverse  effect on the  Company's  business,  financial  condition and
results of operations.

Regulation

     Regulation of Oil and Natural Gas Production. The Company's oil and natural
gas  exploration,  production  and related  operations  are subject to extensive
rules  and  regulations   promulgated  by  federal,   state,  tribal  and  local
authorities and agencies.  For example,  the State of Utah and many other states
require permits for drilling  operations,  drilling bonds and reports concerning
operations  and  impose  other  requirements  relating  to the  exploration  and
production of oil and natural gas. Such states also have statutes or regulations
addressing  conservation  matters,  including  provisions for the unitization or
pooling of oil and natural gas properties, the establishment of maximum rates of
production from wells,  and the regulation of spacing,  plugging and abandonment
of such wells.  Failure to comply with any such rules and regulations can result
in  substantial  penalties.  Although the Company  believes it is in substantial
compliance  with all  applicable  laws and  regulations,  because such rules and
regulations are frequently  amended or  reinterpreted,  the Company is unable to
predict the future cost or impact of complying with such laws.

     Federal Regulation of Natural Gas: The Federal Energy Regulatory Commission
("FERC")  regulates  interstate  natural  gas  transportation  rates and service
conditions,  which affect the  marketing of natural gas produced by the Company,
as well as the  revenues  received by the Company for sales of such  production.
Since the mid-1980's,  FERC has issued a series of orders,  culminating in Order
Nos. 636, 636-A and 636-B ("Order  636"),  that have  significantly  altered the
marketing and  transportation  of natural gas.  Order 636 mandated a fundamental
restructuring of interstate pipeline sales and transportation service, including
the unbundling by interstate pipelines of the sale, transportation,  storage and
other  components of the city-gate  sales  services  such  pipelines  previously
performed.  One of  FERC's  purposes  in  issuing  the  order  was  to  increase
competition  within all phases of the natural gas  industry.  The United  States
Court of Appeals for the District of Columbia  Circuit  largely upheld Order 636
and the  Supreme  Court has  declined  to hear the  appeal  from that  decision.
Proceedings  on remanded  issues are  currently  ongoing at FERC.  In  addition,
numerous  parties  have  filed  for  review  of Order  636 as well as  orders in
individual  pipeline  restructuring  proceedings.  Because  these  orders may be
modified as a result of the  appeals,  it is  difficult  to predict the ultimate
impact of the orders on the  Company  and its  natural  gas  marketing  efforts.
Generally,  Order 636 has  eliminated or  substantially  reduced the  interstate
pipelines'  traditional role as wholesalers of natural gas in favor of providing
only  storage  and  transportation  service,  and  has  substantially  increased
competition and volatility in natural gas markets.

     The price the Company receives from the sale of oil and natural gas liquids
is affected by the cost of transporting  products to markets.  Effective January
1, 1995,  FERC  implemented  regulations  establishing  an  indexing  system for
transportation rates for oil pipelines, which, generally, would index such rates
to inflation,  subject to certain conditions and limitations. The Company is not
able to predict with certainty the effect,  if any, of these  regulations on its
operations. However, the regulations may increase transportation costs or reduce
well head prices for oil and natural gas liquids.

     Bureau of Indian  Affairs.  A substantial  part of the Company's  producing
properties  in the Uinta  Basin are  operated  under oil and  natural gas leases
issued by the Ute Indian Tribe,  which is under the supervision of the Bureau of
Indian Affairs. These activities must comply with rules and orders that regulate
aspects of the oil and natural gas industry, including drilling and operating on
leased  land  and the  calculation  and  payment  of  royalties  to the  federal
government or the Ute Indian  Tribe.  Operations on Ute Indian tribal lands must
also comply with significant  restrictive  requirements of the governing body of
the Ute Indians.  For  example,  such leases  typically  require the operator to
obtain an environmental impact statement based on planned drilling activity.  To
the extent an operator wishes to drill additional  wells, it will be required to
obtain a new assessment.  In addition,  leases with the Ute Indian Tribe require
that the operator agree to protect  certain  archeological  and ancestral  ruins
located on the acreage and to actively  recruit  members of the Ute Indian Tribe
to work on the drilling operations.

                                       4

<PAGE>


     Environmental  Matters. The Company's operations and properties are subject
to extensive and changing federal, state and local laws and regulations relating
to  environmental  protection,  including  the  generation,  storage,  handling,
emission,  transportation  and discharge of materials into the environment,  and
relating to safety and health. The recent trend in environmental legislation and
regulation  generally is toward stricter  standards,  and this trend will likely
continue. These laws and regulations may (i) require the acquisition of a permit
or other authorization before construction or drilling commences and for certain
other  activities;  (ii)  limit or  prohibit  construction,  drilling  and other
activities on certain lands lying within  wilderness and other protected  areas;
and (iii)  impose  substantial  liabilities  for  pollution  resulting  from the
Company's  operations.  The  permits  required  for  various  of  the  Company's
operations  are  subject  to  revocation,  modification  and  renewal by issuing
authorities.   Governmental   authorities   have  the  power  to  enforce  their
regulations, and violations are subject to fines or injunctions, or both. In the
opinion of  management,  the Company is in substantial  compliance  with current
applicable  environmental laws and regulations,  and the Company has no material
commitments  for  capital  expenditures  to comply with  existing  environmental
requirements.   Nevertheless,   changes  in  existing   environmental  laws  and
regulations or in interpretations thereof could have a significant impact on the
Company, as well as the oil and natural gas industry in general.

     The Comprehensive Environmental,  Response, Compensation, and Liability Act
("CERCLA")  and  comparable  state  statutes  impose  strict,  joint and several
liability  on owners and  operators  of sites and on persons who  disposed of or
arranged for the disposal of "hazardous  substances"  found at such sites. It is
not uncommon  for the  neighboring  land owners and other third  parties to file
claims for personal injury and property damage allegedly caused by the hazardous
substances released into the environment.  The Federal Resource Conservation and
Recovery Act  ("RCRA")  and  comparable  state  statutes  govern the disposal of
"solid waste" and "hazardous  waste" and authorize the imposition of substantial
fines and  penalties  for  noncompliance.  Although  CERCLA  currently  excludes
petroleum from its definition of "hazardous substance," state laws affecting the
Company's  operations  impose  clean-up  liability  relating  to  petroleum  and
petroleum related products.  In addition,  although RCRA classifies  certain oil
field wastes as "non-hazardous," such exploration and production wastes could be
reclassified  as hazardous  wastes  thereby  making such wastes  subject to more
stringent handling and disposal requirements.

     The Company has acquired  leasehold  interests in numerous  properties that
for many years have produced oil and natural gas.  Although the previous  owners
of these  interests  may have used  operating and disposal  practices  that were
standard in the industry at the time, hydrocarbons or other wastes may have been
disposed of or released on or under the  properties.  In  addition,  some of the
Company's  properties  may be operated in the future by third  parties over whom
the Company has no control.  Notwithstanding  the Company's lack of control over
properties  operated  by others,  the  failure of the  operator  to comply  with
applicable  environmental  regulations may, in certain circumstances,  adversely
impact the Company.

     NEPA. The National  Environmental Policy Act ("NEPA") is applicable to many
of the Company's  activities and operations.  NEPA is a broad procedural statute
intended to ensure that federal agencies  consider the  environmental  impact of
their  actions  by  requiring  such  agencies  to prepare  environmental  impact
statements  ("EIS") in connection with all federal activities that significantly
affect the environment. Although NEPA is a procedural statute only applicable to
the federal government,  a large portion of the Company's Uinta Basin acreage is
located either on federal land or Ute tribal land jointly  administered with the
federal government. The Bureau of Land Management's issuance of drilling permits
and the  Secretary of the  Interior's  approval of plans of operation  and lease
agreements all constitute federal action within the scope of NEPA. Consequently,
unless the responsible agency determines that the Company's drilling  activities
will not  materially  impact the  environment,  the  responsible  agency will be
required  to prepare an EIS in  conjunction  with the  issuance of any permit or
approval.

     ESA. The Endangered  Species Act ("ESA") seeks to ensure that activities do
not jeopardize  endangered or threatened  animal,  fish and plant  species,  nor
destroy or modify the critical habitat of such species.  Under ESA,  exploration
and  production  operations,  as well as actions by  federal  agencies,  may not
significantly  impair or jeopardize the species or its habitat. ESA provides for
criminal  penalties  for willful  violations  of the Act.  Other  statutes  that
provide  protection  to  animal  and  plant  species  and that may  apply to the
Company's  operations include,  but are not necessarily limited to, the Fish and
Wildlife  Coordination  Act, the Fishery  Conservation  and Management  Act, the
Migratory Bird Treaty Act and the National  Historic  Preservation Act. Although
the Company believes that its operations are in substantial compliance with such
statutes,  any change in these statutes or any  reclassification of a species as
endangered  could  subject  the  Company  to  significant  expense to modify its
operations  or  could  force  the  Company  to  discontinue  certain  operations
altogether.

                                       5


<PAGE>


Abandonment Costs

     The Company is  responsible  for payment of its working  interest  share of
plugging and abandonment  costs on its oil and natural gas properties.  Based on
its experience,  the Company  anticipates  that the ultimate  aggregate  salvage
value of lease and well  equipment  located on its  properties  will  exceed the
costs of abandoning such properties.  There can be no assurance,  however,  that
the Company will be  successful  in avoiding  additional  expenses in connection
with the abandonment of any of its properties.  In addition,  abandonment  costs
and their  timing may change due to many  factors  including  actual  production
results, inflation rates and changes in environmental laws and regulations.

Title to Properties

     The Company  believes  it has  satisfactory  title to all of its  producing
properties  in  accordance  with  standards  generally  accepted  in the oil and
natural gas industry.  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 Company's Credit Agreement is
secured by  substantially  all the  Company's  oil and natural  gas  properties.
Presently,  the Company keeps in force its leaseholds for 20% of its net acreage
by virtue of  production  on that acreage in paying  quantities.  The  remaining
acreage is held by lease rentals and similar provisions and requires  production
in paying  quantities prior to expiration of various time periods to avoid lease
termination.

Other Facilities

     The Company  currently  leases  approximately  3,300  square feet of office
space in  Hutchinson,  Kansas,  where  its  principal  offices  are  located.  A
significant  portion of the Company's principal offices are leased through Hutch
Realty LLC, an affiliate of the Company.

Employees

     As of December 31, 1997,  the Company had 48 full-time  employees,  none of
whom is represented by any labor union.  Included in the total were 20 corporate
employees located in the Company's office in Hutchinson, Kansas.
The Company considers its relations with its employees to be good.

ITEM 2.     PROPERTIES

General

     The Company's  primary  activities  are focused in the Uinta Basin in Utah,
where it is implementing enhanced oil recovery projects in the Lower Green River
formation of the Greater  Monument  Butte  Region.  The  Company's  enhanced oil
recovery development strategy utilizes waterflood techniques designed to rebuild
and maintain reservoir pressure.  Waterflooding  involves the injection of water
into a reservoir forcing oil through the formation toward producing wells within
the development area and driving free natural gas in the reservoir back into oil
solution,  creating  greater  pressure  within the reservoir and making oil more
mobile.

     The  Company  acquired  63,000  gross and net  acres in the Raton  Basin in
Colorado in 1997, where the Company plans to develop coalbed methane natural gas
reserves.  Coalbed  methane  production is similar to natural gas  production in
terms of the physical  producing  facilities and the product  produced.  Coalbed
methane  wells are  drilled and  completed  in a manner  similar to  traditional
natural gas wells, but development relies upon the release of coalbed methane as
pressure is reduced in the reservoir due to water removal.

     The Company has a 100% working interest in 5,079 gross and net acres in the
Helen Gohlke field  located  within the Wilcox Trend in the Gulf Coast Region of
South  Texas.  The Company is currently  reviewing  the results of a 3-D seismic
survey of this  acreage and  intends to drill with an industry  partner at least
three gross (1.5 net) wells on this acreage during 1998.

                                       6

<PAGE>


Oil and Natural Gas Reserves

     The following  table  summarizes  the estimates of the Company's  estimated
historical  net proved  reserves of oil and natural gas as of December 31, 1997,
1996 and 1995:

<TABLE>


                                     As of December 31,
                  --------------------------------------------------------------
                      1997                      1996                      1995
                  ------------------    ------------------    ------------------
                            Natural               Natural               Natural
                    Oil      Gas         Oil       Gas          Oil      Gas
                  (MBbls)   (MMcf)     (MBbls)    (MMcf)      (MBbls)   (MMcf)
                  -------  ---------    ------  ----------    -------  ---------
<S>                <C>        <C>      <C>        <C>         <C>         <C>

Proved developed:

 Utah.............  4,620      9,202      568      1,600         870       1,219

 Other............    122      1,637      297      1,410         691       5,440
                   ------     ------   ------     ------      ------      ------
    Total.........  4,742     10,839      865      3,010       1,561       6,659
                   ------     ------   ------     ------      ------      ------
Proved undeveloped:

 Utah.............  4,714      9,856    5,262     15,802          --          --
                   ------     ------   ------     ------      ------      ------     
    Total.........  4,714      9,856    5,262     15,802          --          --
                   ------     ------   ------     ------      ------      ------               
    Total proved..  9,456     20,695    6,127     18,812       1,561       6,659
                   ======     ======   ======     ======      ======      ======   

</TABLE>

     The following table sets forth the future net cash flows from the Company's
estimated proved reserves:

                                                       As of December 31,
                                                 1997         1996        1995
                                             ----------   ----------  ----------
                                                        (In thousands)
Future net cash flow before income taxes:
     
Utah....................................     $  96,768    $ 117,101    $  10,019

Other...................................         2,469        6,699       12,412
                                             ----------   ----------  ----------
    Total...............................     $  99,237    $ 123,800    $  22,431
                                             ==========   ==========  ==========

Future net cash flow before income taxes, discounted at 10%:

Utah....................................     $  41,631    $  59,447    $   7,421

Other...................................         1,798        4,656        7,553
                                             ----------   ----------  ----------
    Total...............................     $  43,429    $  64,103    $  14,974
                                             ==========   ==========  ==========
                              
     The reserve  estimates for 1997 were prepared by Lee Keeling and Associates
Inc.,  the Company's  independent  petroleum  engineers.  The reserve  estimates
reflected above for 1996 and 1995 were prepared by the Company.

                                       7

<PAGE>


     In accordance with applicable requirements of the Commission,  estimates of
the  Company's  proved  reserves  and future net  revenues  are made using sales
prices  estimated to be in effect as of the date of such reserve  estimates  and
are held constant  throughout the life of the properties (except to the extent a
contract specifically  provides for escalation).  Estimated quantities of proved
reserves and future net revenues  therefrom  are affected by oil and natural gas
prices,  which  have  fluctuated  widely in  recent  years.  There are  numerous
uncertainties  inherent in  estimating  oil and natural gas  reserves  and their
estimated values, including many factors beyond the control of the producer. The
reserve  data set forth in this  report  represents  only  estimates.  Reservoir
engineering is a subjective process of estimating  underground  accumulations of
oil and natural gas that cannot be measured in an exact manner.  The accuracy of
any  reserve  estimate is a function  of the  quality of  available  data and of
engineering  and  geological  interpretation  and  judgment.  In  addition,  the
Company's use of enhanced oil recovery  techniques  requires greater development
expenditures than traditional drilling strategies.  The Company expects to drill
a number of wells utilizing  waterflood  technology in the future. The Company's
waterflood   program   involves   greater  risk  of  mechanical   problems  than
conventional   development  programs.  As  a  result,   estimates  of  different
engineers, including those used by the Company, may vary. In addition, estimates
of reserves  are subject to revision  based upon actual  production,  results of
future  development and exploration  activities,  prevailing natural gas and oil
prices,  operating  costs and other  factors,  which  revisions may be material.
Accordingly,  reserve  estimates  are often  different  from the  quantities  of
natural gas and oil that are ultimately  recovered and are highly dependent upon
the  accuracy  of the  assumptions  upon  which they are  based.  The  Company's
estimated proved reserves have not been filed with or included in reports to any
federal agency.

Exploration and Development Activities

     The Company  drilled,  or  participated  in the drilling of, the  following
number of wells during the periods indicated.  At December 31, 1997, the Company
was in the process of completing 8 gross (4 net) wells as producers.


                                         Year Ended December 31,
                  --------------------------------------------------------------
                         1997                   1996                 1995
                  ------------------    ------------------    ------------------
                  Gross       Net        Gross     Net         Gross        Net 
                  -------  ---------    ------  ----------    -------  ---------


Exploratory:

Oil..............       2        2.0        --          --         --         --

Natural gas......       2        1.0        --          --         --         --

Nonproductive....      --         --        --          --          3        2.5
                  -------  ---------    ------  ----------    -------  ---------
    Total........       4        3.0        --          --          3        2.5
                  =======  =========    ======  ==========    =======  =========
Development:

Oil..............     52        26.0        38        19.0          9        4.5

Natural gas......      --         --        --          --          2        1.0

Nonproductive....      --         --        --          --         --         --
                  -------  ---------    ------  ----------    -------  ---------
    Total........     52        26.0        38        19.0         11        5.5
                  =======  =========    ======  ==========    =======  =========
Total:

Productive.......      56       29.0        38        19.0         11        5.5

Nonproductive....      --         --        --          --          3        2.5
                  -------  ---------    ------  ----------    -------  ---------
     Total.......      56       29.0        38        19.0         14        8.0
                  =======  =========    ======  ==========    =======  =========


     As a result of the Company's drilling results to date, the Company believes
that the nature of the geology in the Lower Green River formation in the Greater
Monument  Butte  Region  is   characterized  by  the  presence  of  hydrocarbons
throughout the region and, as a consequence, the distinction between exploratory
and  development  wells in this region is not as important as it is in other oil
and natural gas producing areas.

     The Company does not own any drilling rigs; therefore,  all of its drilling
activities are conducted by  independent  contractors  under  standard  drilling
contracts.

                                       8

<PAGE>
Productive Well Summary

     The  following  table sets forth the  Company's  ownership  interest  as of
December  31, 1997 in  productive  oil and natural gas wells in the  development
areas indicated.
<TABLE>
                              Oil             Natural Gas          Total
                       -----------------  ------------------  ------------------
                       Gross       Net      Gross   Net        Gross      Net     
                       -------- --------  --------  --------  --------  --------
<S>                    <C>      <C>       <C>       <C>       <C>       <C>
Area                                       
- ----                                       
Utah:

Antelope Creek Field.....   116       58        --        --       116        58

Duchesne Field...........     6        6        --        --         6         6

Natural Buttes Extension.    --       --        --        --        --        --
                       -------- --------  --------  --------  --------  --------

     Total...............   122       64        --        --       122        64

Colorado.................    --       --        --        --        --        --

Other....................     8        8         7         7        15        15
                       -------- --------  --------  --------  --------  --------
                                     
     Total...............   130       72         7         7       137        79
                       ========  =======  =======   ========  ========  ========

</TABLE>
     In addition,  as of December  31,  1997,  the Company had 22 gross (11 net)
active water injection wells on its acreage in the Uinta Basin.

Volumes, Prices and Production Costs

     The following table sets forth the production volumes, average sales prices
and average  production  costs  associated  with the  Company's  sale of oil and
natural gas for the period indicated.

<TABLE>

                                         Year Ended December 31,
                              
                                    1997       1996         1995
                                   -------     -------     -------
<S>                                <C>         <C>         <C>    

Net production (1):

Oil (Bbls)....................     251,631     262,910     182,704

Natural gas (Mcf).............     537,466     553,770     659,202

Oil equivalent (BOE)..........     341,209     355,205     292,571

Average sales price (2):

Oil (per Bbl):

    Utah (3)..................      $14.37     $ 15.82     $ 18.34

    Other.....................       18.94       20.35       16.30

    Weighted average (4)......       14.84       16.96       17.61

Natural gas (per Mcf):

    Utah......................      $ 1.91     $  1.64     $  1.40

    Other.....................        2.37        1.96        1.69

    Weighted average..........        1.99        1.80        1.54

Average lease operating  expenses  including  
production and property taxes (per BOE):

Utah..........................      $ 3.67     $  5.21     $  6.06
 
Other.........................       15.08       11.99       11.68

Weighted average..............        5.09        7.37        8.37
- -----------------------------------

</TABLE>
                                       9

<PAGE>


(1)  The Company's 1997 oil and gas production volumes include the effect of the
     sale of a 50% interest in its Antelope  Creek  properties  in June 1996 and
     the sale of certain non-strategic properties in late 1996 and early 1997.
(2)  Before deduction of property taxes.
(3)  Excluding the effects of crude oil hedging transactions and amortization of
     deferred  revenue,  the weighted average Uinta Basin sales price per Bbl of
     oil  received by the  Company  was $15.12,  $20.18 and $17.03 for the years
     ended December 31, 1997, 1996 and 1995, respectively.
(4)  Excluding the effects of crude oil hedging transactions and amortization of
     deferred  revenue,  the  weighted  average  sales  price per Bbl of oil was
     $15.52,  $20.22 and $16.77 for the years ended December 31, 1997,  1996 and
     1995, respectively.

Development, Exploration and Acquisition Expenditures

     The  following  table sets forth the costs  incurred  by the Company in its
development,   exploration  and  acquisition   activities   during  the  periods
indicated.


                                         Year Ended December 31,
                                         -----------------------
                                    1997             1996         1995
                                ------------- -------------- -----------

Acquisition costs:

     Unproved properties.....     $ 1,721,636     $  490,487  $    8,206

     Proved properties.......         147,387             --   4,718,201

Development costs............      10,003,468      6,983,715   3,448,972

Exploration costs............              --             --     316,089

Improved recovery costs......         895,317        327,027     154,023
                                ------------- -------------- -----------

         Total...............   $  12,767,808 $    7,801,229 $ 8,645,491
                                ============= ============== ===========


Acreage

     The following  table sets forth, as of December 31, 1997, the gross and net
acres of developed and  undeveloped oil and natural gas leases which the Company
holds or has the right to acquire.


                               Developed       Undeveloped           Total
                           ----------------  ----------------  -----------------
Area                        Gross     Net     Gross     Net     Gross      Net
- ----                       -------  -------  -------  -------  -------  --------

Utah:

Antelope Creek Field......   5,600    2,880   15,383    9,823   20,983    12,703

Duchesne Field............   1,240    1,240   10,779   10,155   12,019    11,395

Natural Buttes Extension..      --       --   13,253   13,253   13,253    13,253
                           -------  -------  -------  -------  -------  --------

     Total................   6,840    4,120   39,415   33,231   46,255    37,351
                           -------   -------  -------  -------  -------  -------

Colorado..................      --       --   63,000   63,000   63,000    63,000

Other.....................   6,279    5,663     --         --    6,279     5,663
                           -------  -------  -------  -------  -------  --------

     Total................  13,119    9,783  102,415   96,231  115,534   106,014
                           =======  =======  =======  =======  =======  ========


ITEM 3.  LEGAL PROCEEDINGS

     The Company is not a party to any material legal proceedings.


                                       10

<PAGE>


ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     No matter was submitted to a vote of the Company's security holders between
October 20, 1997, the effective date of the Company's  initial public  offering,
and December 31, 1997.


EXECUTIVE OFFICERS OF THE REGISTRANT

     Pursuant to  Instruction 3 to Item 401(b) of the Regulation S-K and General
Instruction  G(3) to Form 10-K, the following  information is included in Part I
of this report.

     The following table sets forth certain information concerning the executive
officers of the Company as of December 31, 1997:

     Name              Age      Position
     ----              ---      --------

Robert C. Murdock....  40       President, Chief Executive Officer and Chairman 
                                of the Board

Robert A. Christensen  51       Executive Vice President, Chief Technical 
                                Officer and Director

Sidney Kennard Smith.  55       Executive Vice President, Chief Operating 
                                Officer and Secretary

Tim A. Lucas.........  33       Vice President, Chief Financial Officer and 
                                Treasurer

     Set forth  below is a  description  of the  backgrounds  of each  executive
officer of the Company,  including employment history for at least the last five
years.

     Robert C.  Murdock has served as  President,  Chief  Executive  Officer and
Chairman  of the Board of the Company  since its  inception  in 1993.  From 1985
until the  formation  of the  Company,  Mr.  Murdock  was  President  of GasTrak
Holdings,  Inc., a natural gas  gathering and  marketing  company.  From 1982 to
1985,  Mr.  Murdock held various staff and  management  positions with Panhandle
Eastern Pipe Line Company,  where he was  responsible  for the  development  and
implementation of special marketing programs,  natural gas supply  acquisitions,
natural  gas  supply  planning  and  forecasting,  and for  developing  computer
management systems for natural gas contract administration.

     Robert A.  Christensen  has served as Executive Vice President and Director
of the Company  since its inception in April 1993,  and  currently  functions as
Chief Technical  Officer with primary  responsibility  for property  acquisition
evaluations,  business development and strategic alliance formation.  From April
1993 to 1996,  Mr.  Christensen  served as  President  of  Petroglyph  Operating
Company,  Inc., a wholly owned operating subsidiary of the Company. From January
1992 to April 1993, Mr. Christensen was the President of Bishop Resources, Inc.,
where he was  responsible  for  managing  the oil and  natural gas assets of the
company.  From April 1988 to April 1993, Mr.  Christensen was Manager of Project
Development  for Management  Resources  Group,  Ltd. From November 1985 to April
1988, Mr.  Christensen was an independent  consultant in engineering  operations
and economic  evaluations,  primarily  in Kansas.  Prior to November  1985,  Mr.
Christensen  held  various  positions  with  independent  oil  and  natural  gas
exploration and production companies,  as well as a major service company. He is
a member of the Society of Petroleum Engineers, the Society of Professional Well
Log Analysts and has  completed the James M. Smith and William T. Cobb course in
waterflooding.

     Sidney  Kennard  Smith has served as  Executive  Vice  President  and Chief
Operating Officer of the Company since January 1994 and Secretary of the Company
since April 1997, and was  responsible for  accounting,  financial  planning and
budgeting  through  December  1995.  Currently  Mr. Smith serves as President of
Petroglyph  Operating  Company.  From June 1992  through  1993,  Mr. Smith was a
principal  and  treasurer of TKS  Consulting,  where he  performed  economic and
financial analysis,  as well as served as an expert witness in state and federal
court and regulatory agency hearings.  From February 1986 to May 1992, Mr. Smith
served  as Vice  President  of  Finance  for Gage  Corporation,  a  natural  gas
development and processing company. From August 1982 to July 1985, Mr. Smith was
Treasurer  and  Controller  for  Sparkman  Energy  Corporation.  Mr.  Smith is a
Certified  Public  Accountant  and is a  member  of the  American  Institute  of
Certified Public  Accountants and the Texas and Oklahoma  Societies of Certified
Public Accountants.

                                       11
<PAGE>


     Tim A. Lucas has served as Vice  President,  Chief  Financial  Officer  and
Treasurer  of the Company  since July 1997.  From 1994 through  1997,  Mr. Lucas
served as Senior  Financial  Manager for Cross Oil Refining &  Marketing,  Inc.,
where he was responsible for all financial matters of the Company.  From 1989 to
1994,  Mr.  Lucas  worked in the energy  group of the audit  division  of Arthur
Andersen  LLP. Mr Lucas is a  Certified  Public  Accountant  and a member of the
American  Institute of Certified Public  Accountants and the Oklahoma Society of
Certified Public Accountants.

                                     PART II

ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

     The Company's  Common Stock has been publicly traded on the Nasdaq National
Market  under the symbol  "PGEI" since the  Company's  initial  public  offering
effective  October 20, 1997. The high and low closing sales prices of the Common
Stock as  reported  by the Nasdaq  National  Market  from  October  20,  1997 to
December 31, 1997 were $13.875 and $6.75, respectively.

     As of March 18, 1998,  the Company  estimates that there were more than 400
stockholders  (including  brokerage  firms and other  nominees) of the Company's
Common Stock.

     No dividends  have been declared or paid on the  Company's  Common Stock to
date. For the foreseeable future, the Company intends to retain any earnings for
the development of its business.















                                       12

<PAGE>


ITEM 6.  SELECTED FINANCIAL DATA

     The  following   selected  combined   financial  data  should  be  read  in
conjunction  with "Item 7.  Management's  Discussion  and  Analysis of Financial
Condition  and  Results of  Operations"  and the  Company's  combined  financial
statements and related notes included in "Item 8. Combined Financial  Statements
and Supplementary Data."
<TABLE>

                                                               Year Ended December 31,
                                                       1997      1996      1995      1994      1993
                                                     --------  --------  --------  --------  --------  
                                               (in thousands, except per share amounts and operating data)
<S>                                                  <C>       <C>       <C>      <C>       <C>    

Statement of Operations Data:

   Operating revenues:

       Oil sales.....................................$  3,735  $  4,459  $ 3,217  $ 1,644   $   224

       Natural gas sales.............................   1,070       999    1,016      796       182

       Other.........................................      61      --         36       45        86
                                                     --------  --------  -------- ---------  --------

           Total operating revenues..................   4,866     5,458    4,269    2,485       492
                                                     --------  --------  -------- ---------  --------
   Operating expenses:
       Lease operating...............................   1,560     2,369    2,260    1,601       238
       Production taxes..............................     179       299      188       89         9
       Exploration costs.............................    --          69      376       70        --
       Depreciation, depletion and amortization......   1,852     2,806    2,302    1,977       153
       Impairments...................................    --        --        109     --          --
       General and administrative....................   1,300       902    1,064      956       278
                                                     --------  --------  -------- ---------  --------
           Total operating expenses..................   4,891     6,395    6,299    4,693       678
                                                     --------  --------  -------- ---------  --------
   Operating loss....................................     (25)     (937)  (2,030)  (2,208)     (186)
   Other income (expenses):
       Interest income (expense), net................     114        40     (216)     (93)       --
       Gain (loss) on sales of property and              
          equipment, net............................       12     1,384     (138)      44        63
                                                     --------  --------  -------- ---------  --------
           
   Net income (loss) before income taxes.............     101       487   (2,384)  (2,257)     (123)
   Income tax expense (1)............................  (2,514)     (190)    --       --          --
                                                     --------  --------  -------- ---------  --------
   Net income (loss).................................$ (2,413) $    297  $(2,384) $ (2,257) $  (123)
                                                     ========  ========  ======== =========  ========
Supplemental pro forma earnings (loss) per           
   common share (2)..................................$   (.73) $    .11  $  (.84)
Statement of Cash Flows Data:
   Net cash provided by (used in):
       Operating activities..........................$  1,633  $  4,129  $   347  $   (67)  $     4
       Investing activities.......................... (15,514)      303   (9,580)  (8,131)   (1,084)
       Financing activities..........................  28,982    (3,930)  10,049    8,119     1,418
Other Financial Data:
   Capital expenditures..............................$ 16,260  $  8,665  $10,443  $ 8,277   $ 1,136
   Adjusted EBITDA (3)...............................   1,839     3,322      619     (117)       30
   Operating cash flow (4)...........................   1,896     2,024      608     (233)      (33)
Balance Sheet Data:
   Cash and cash equivalents.........................$ 16,679  $  1,578  $ 1,075  $   258   $   338
   Working capital...................................  14,872      (541)   1,133      113       359
   Total assets......................................  46,714    17,470   17,598    9,685     2,392
   Total long-term debt..............................    --          52    3,900    1,800        --
   Total stockholders' equity........................  39,498    12,695   12,207    6,592     2,218

</TABLE>

(1)    Income tax expense was computed at the federal  statutory rate of 35% and
       an average  of the state  statutory  rates for those  states in which the
       company has operations of 4% for each period  presented.  Tax information
       for 1996 is shown  as pro  forma to  reflect  income  tax  expense  as if
       Partnership income were subject to federal income tax.

                                       13
<PAGE>
(2)    Weighted  average common shares  outstanding  used in the  calculation of
       earnings  (loss) per common share for the years ended  December 31, 1997,
       1996 and 1995 were  3,326,826 for 1997 and  2,833,333  (pro forma) shares
       for 1996 and 1995.

(3)    Adjusted EBITDA (as used herein) is calculated by adding interest, income
       taxes,   depreciation,   depletion  and  amortization,   impairments  and
       exploration  costs  to net  income  (loss).  Interest  includes  interest
       expense accrued and amortization of deferred financing costs. The Company
       did not incur  impairment  expense  for any  period  reported  except for
       $109,000 for the year ended  December 31,  1995.  Exploration  costs were
       zero,  $69,000,  $376,000,  $70,000  and zero for each of the years ended
       December  31,  1997,  1996,  1995,  1994 and  1993.  Adjusted  EBITDA  is
       presented not as a measure of operating results,  but rather as a measure
       of the  Company's  operating  performance  and  ability to service  debt.
       Adjusted  EBITDA is not intended to represent  cash flows for the period;
       nor has it been  presented  as an  alternative  to net  income  (loss) or
       operating income (loss) nor as an indicator of the Company's financial or
       operating performance.  Management believes that Adjusted EBITDA provides
       supplemental  information  about the Company's ability to meet its future
       requirements for debt service,  capital expenditures and working capital.
       Management  monitors trends in Adjusted EBITDA,  as well as the trends in
       revenues  and net income  (loss),  to aid it in  managing  its  business.
       Management  believes  that the recent  increases  in Adjusted  EBITDA are
       indicative of the increased  production  volumes and decreased  operating
       costs  experienced  by  the  Company.   Adjusted  EBITDA  should  not  be
       considered  in  isolation,  as a substitute  for measures of  performance
       prepared in accordance with generally accepted  accounting  principles or
       as  being   comparable  to  other  similarly  titled  measures  of  other
       companies, which are not necessarily calculated in the same manner.

(4)    Operating  cash flow is  defined as net income  plus  adjustments  to net
       income to arrive at net cash  provided  by  operating  activities  before
       changes in working capital.



ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS 
        OF OPERATIONS

General

       The following table sets forth certain  operating data of the Company for
the periods presented:
                                          
                                                 Year Ended December 31,
                                              1997       1996        1995
                                           --------   --------    --------

Production Data(1):
Oil (Bbls)................................   251,631    262,910     182,704
Natural Gas (Mcf).........................   537,466    553,770     659,202
     Total (BOE)..........................   341,209    355,205     292,571
Average Sales Price Per Unit(2):
Oil (per Bbl)(3).......................... $   14.84  $   16.96   $   17.61
Natural Gas (per Mcf).....................      1.99       1.80        1.54
BOE.......................................     14.08      15.36       14.47
Costs Per BOE:
Lease operating expense................... $    4.57  $    6.67   $    7.73
Production and property taxes.............       .52       0.70        0.64
General and administrative................      3.81       2.54        3.64
Depreciation, depletion and amortization..      5.43       7.90        7.87
Average finding costs(4)..................      3.00       2.86       10.96


(1)    The Company's 1997 oil and gas production  volumes  include the effect of
       the sale of a 50% interest in its Antelope Creek  properties in June 1996
       and the sale of certain  non-strategic  properties in late 1996 and early
       1997.
(2)    Before deduction of production taxes.

                                       14
<PAGE>


(3)    Excluding the effects of crude oil hedging  transactions and amortization
       of deferred revenue,  the weighted average sales price per Bbl of oil was
       $15.52, $20.22 and $16.77 for the years ended December 31, 1997, 1996 and
       1995, respectively.
(4)    The calculation of average finding costs for the years ended December 31,
       1997 and 1996 includes future development costs of $2.7 million and $16.5
       million,  respectively.  Average  finding costs per BOE  excluding  these
       amounts  were $2.37 and $.85 for the years  ended  December  31, 1997 and
       1996, respectively. Future development costs were insignificant in 1995.

       The Company uses the successful  efforts method of accounting for its oil
and  natural  gas  activities.  Costs to acquire  mineral  interests  in oil and
natural  gas  properties,  to drill and equip  exploratory  wells that result in
proved reserves, and to drill and equip development wells are capitalized. Costs
to drill  exploratory  wells that do not result in proved reserves,  geological,
geophysical  and seismic costs,  and costs of carrying and retaining  properties
that  do  not  contain  proved  reserves  are  expensed.  Costs  of  significant
nonproducing  properties,  wells in the process of being drilled and development
projects are excluded from depletion  until such time as the related  project is
developed and proved reserves are established or impairment is determined.

       The Company's  predecessor  was  classified as a partnership  for federal
income tax purposes. Therefore, no income taxes were paid or provided for by the
Company prior to the Conversion.  Future tax amounts,  if any, will be dependent
upon several  factors,  including  but not limited to the  Company's  results of
operations.

Results of Operations

       Year Ended December 31, 1997 Compared to Year Ended December 31, 1996

       Operating Revenues

       Oil revenues  decreased by 16% to $3,735,000  for the year ended December
31, 1997 as compared to $4,459,000  for 1996  primarily as a result of an 11,000
Bbl decrease in the Company's oil production volume and a decline in average oil
sales  prices from $16.96 per Bbl in 1996 to $14.84 in 1997.  The decline in the
Company's  oil  production  is due to the  sale of a 50%  interest  in the  Utah
properties in June 1996 and the sale of certain other  non-strategic  properties
between  the third  quarter  of 1996 and the first  quarter  of 1997,  partially
offset by increased  production volume from the Company's remaining 50% interest
in the Utah properties as a result of the Company's  aggressive drilling program
on its Utah  properties  beginning  in the second  half of 1996.  The decline in
average oil sales  price of $2.12 per Bbl was due to a  reduction  in demand for
the Company's production as a result of a temporary  maintenance shutdown during
1996 and early  1997 of one of the  refineries  which is a  primary  user of the
Company's Utah  production,  a crude oil hedge loss of $132,000 and amortization
of deferred  revenue of $46,000.  The Company's  average oil sales price for the
year  ended  December  31,  1997,  excluding  the  effects of the hedge loss and
amortization of deferred revenue was $15.52 per Bbl.

       Natural gas  revenues  increased by 7% to  $1,070,000  for the year ended
December 31, 1997, as compared to $999,000 for 1996  primarily as a result of an
increase in the average natural gas sales price to $1.99 per Mcf during the year
ended  December 31, 1997, as compared to $1.80 per Mcf for 1996. The increase in
natural gas prices was partially  offset by a decline in natural gas  production
of 16,000 Mcf primarily due to dispositions of certain non-strategic natural gas
properties  during 1996,  the sale of a 50% interest in the Utah  properties  in
June  1996 and the  inception  of the  secondary  oil  recovery  program  on the
Company's Utah properties in mid-1996.  These declines in natural gas production
volumes were offset by increased  natural gas production  volumes related to the
Company's  remaining  50%  interest  in the Utah  properties  as a result of the
Company's  aggressive drilling program on the properties beginning in the second
half of 1996.

       

                                       15

<PAGE>
Operating Expenses

       Lease  operating  expenses  decreased  to  $1,560,000  for the year ended
December 31, 1997, as compared to $2,369,000  for 1996  primarily as a result of
the sale of a 50% interest in the Company's Utah properties in June 1996 and the
sale of certain other  non-strategic oil and natural gas properties  between the
third  quarter  of 1996 and the first  quarter of 1997,  partially  offset by an
increase in the number of  producing  wells in which the Company has an interest
due to the aggressive  drilling program on the Company's Utah properties,  which
began in the second half of 1996.  In addition,  the Company's  lease  operating
expenses  on a per BOE basis  declined  by 31% to $4.57 per BOE  during  1997 as
compared to $6.67 per BOE for 1996. This decline in lease operating expenses per
BOE is due to the  benefits  of  improved  economies  of scale  from  increasing
production volumes from the Utah properties and the Company's continued focus on
reduction of operating  costs through  improved  efficiencies.  This decline was
partially  offset by a significant  increase in per BOE production  costs of the
Company's non-Utah properties due to several workovers performed during 1997.

       Depreciation,  depletion  and  amortization  expense  decreased by 34% to
$1,852,000  for the year ended  December 31, 1997, as compared to $2,806,000 for
1996 primarily as a result of a significant  increase in proved reserves in 1997
as a result of the  Company's  aggressive  drilling  program  which began in the
second  half of  1996,  the  sale  of the 50%  interest  in the  Company's  Utah
properties  in June 1996 and the sale of  certain  other  non-strategic  oil and
natural gas properties in the third quarter of 1996 through the first quarter of
1997.  These  items  were  partially  offset by  increased  production  from the
Company's remaining interest in the Utah properties.

       Exploration  costs  declined to zero for the year ended December 31, 1997
from $69,000 for 1996, as all of the Company's  exploratory  drilling activities
were  successful  during the period and no geological and  geophysical  work was
performed.

       General and  administrative  expenses  increased by 44% to $1,300,000 for
the year ended  December  31,  1997,  as  compared to  $902,000  for 1996.  This
increase  was  the  result  of  an  increase  in  engineering,   geological  and
administrative  staff  necessary  for the  increased  development  activity  and
increased  accounting staff needed to meet the increased reporting  requirements
associated with being a public company.

       Other Income (Expenses)

       Interest  income  (expense)  net,  for the year ended  December 31, 1997,
increased  to $114,000 as compared to $40,000 in 1996  primarily  as a result of
interest  earned  on the  proceeds  from the  Offering,  partially  offset by an
increase in average outstanding debt during 1997.

       Gain on sales of property and equipment  declined to $12,000 for the year
ended  December  31,  1997,  as  compared  to  $1,384,000  for 1996 due to gains
recognized  from the sale of a 50% interest in the Company's Utah  properties in
June 1996 and sales of non-strategic oil and gas properties in the third quarter
of 1996.

       Income Tax Expense

       Income tax  expense  increased  for the year ended  December  31, 1997 to
$2,514,000  as compared to the pro forma  amount of $190,000 for the same period
in 1996.  This  increase  is due to the impact of a  one-time,  non-cash  charge
associated  with the adoption of SFAS No. 109,  "Accounting  for Income  Taxes."
SFAS No. 109 required  that the net deferred tax  liabilities  of the Company on
the date of the  Conversion  be recognized as a component of income tax expense.
The Company  recognized  $2,475,000 in deferred tax  liabilities  and income tax
expense on the date of the Conversion.

       

                                       16

<PAGE>
Year Ended December 31, 1996 Compared to December 31, 1995

       Operating Revenues

       Oil  revenues  increased  by 39% to  $4,459,000  in 1996 as  compared  to
$3,217,000  in 1995  primarily as a result of an increase in the  Company's  oil
production  volume  of  approximately  80,000  Bbls in  1996.  The  increase  in
production volume is primarily the result of the Company's  aggressive  drilling
program on its Utah properties during the last six months of 1996. This increase
was  partially  offset by a decline in average oil sales  prices from $17.61 per
Bbl in 1995 to $16.96  per Bbl in 1996.  The  decline in the  average  oil sales
price was due to a reduction  in demand for the  Company's  Utah oil  production
during the second  half of 1996 as a result of a  temporary  shutdown  for major
maintenance  of  one of the  refineries  which  is a  primary  purchaser  of the
Company's Utah  production,  a crude oil hedge loss of $128,000 and amortization
of deferred revenue of $524,000.  The Company's  average 1996 sales price of oil
excluding the effects of the hedge loss and amortization of deferred revenue was
$20.22 per Bbl.

       Natural  gas  revenues  declined by 2% to $999,000 in 1996 as compared to
$1,016,000 in 1995 primarily due to a decline in natural gas sales production to
553,770 Mcf in 1996 as  compared to 659,202 Mcf in 1995.  The decline in natural
gas sales  production is  attributable  to disposition  of certain  nonstrategic
natural gas properties  during 1996 and reduced gas production  volumes from the
Utah  properties  due to inception of the  secondary oil recovery  program.  The
decrease in natural gas production  volumes was partially  offset by an increase
in average  sales  prices of natural gas to $1.80 per Mcf in 1996 as compared to
$1.54 per Mcf in 1995.

       Operating Expenses

       Lease operating  expenses  increased to $2,369,000 in 1996 as compared to
$2,260,000  in 1995  primarily  as a result  of an  increase  in the  number  of
producing  wells in which the Company has an interest  due to the 1996  drilling
program,  partially offset by a reduction in lease operating expenses per BOE to
$6.67 in 1996 as compared to $7.73 in 1995. The 14% decrease in lease  operating
expenses on a per BOE basis is primarily due to a decline in production costs of
the  Utah  properties  due to the  Company's  continued  focus on  reduction  of
operating costs through improved efficiencies. This decrease is partially offset
by an increase in per BOE production costs of the Company non-Utah properties.

       Production  taxes  increased by 33%, or $61,000,  from 1995 to 1996. This
increase is due primarily to a 29% increase in the Company's oil and natural gas
revenues during 1996 as compared to 1995.

       Depreciation,  depletion  and  amortization  expense  increased by 22% to
$2,806,000 in 1996 as compared to  $2,302,000 in 1995,  primarily as a result of
increased  production  volumes  due to  1996  drilling  activity.  Depreciation,
depletion and amortization  expense increased  slightly to $7.90 per BOE in 1996
as compared to $7.87 per BOE in 1995.

     Exploration  costs  declined  by 82% to  $69,000  in  1996 as  compared  to
$376,000 in 1995 due to a reduction in dry hole costs in 1996.

       General and administrative  expenses decreased by 15% to $902,000 in 1996
as  compared  to  $1,064,000  in 1995.  This  decline  was due to an increase in
overhead  charges  billed to  non-operating  partners of $484,000 as a result of
increased  activity on the Utah  properties  during 1996 due to the  significant
number of wells  drilled in the second half of 1996.  This decline was partially
offset by an increase in engineering and administrative staff as a result of the
increased development activity.

       Other Income (Expenses)

       Interest income (expense),  net, improved by $256,000 as compared to 1995
to $40,000 of income in 1996  primarily  as a result of a  reduction  in average
outstanding  debt and an  increase  in  interest  capitalized  of $44,000 on the
Company's Utah properties development project.

       Gain on sale of assets was  $1,384,000  in 1996 as  compared to a loss of
$138,000  in 1995.  The gain in 1996 is  primarily  due to a gain of  $1,314,000
recognized on the sale of the 50% interest in the Utah properties in June 1996.

Liquidity and Capital Resources

       Capital Expenditures

       The Company requires capital  primarily for the exploration,  development
and acquisition of oil and natural gas properties, the repayment of indebtedness
and general working capital purposes.


                                       17
<PAGE>


       The  following  table sets forth  costs  incurred  by the  Company in its
exploration,   development  and  acquisition   activities   during  the  periods
indicated.


                                        Year Ended December 31,
                                    1997          1996           1995
                               ------------   ------------   ------------

Acquisition costs:

       Unproved properties...  $  1,721,636   $    490,487   $      8,206

       Proved properties.....       147,387             --      4,718,201

Development costs............    10,003,468      6,983,715      3,448,972

Exploration costs............            --             --        316,089

Improved recovery costs......       895,317        327,027        154,023
                               ------------   ------------   ------------

Total........................  $ 12,767,808   $  7,801,229   $  8,645,491
                               ============   ============   ============

       During  1998,  the Company  plans to focus its  efforts on the  continued
development of its improved recovery projects in the Uinta Basin in Utah and its
coal-bed methane project in the Raton Basin in Colorado.

       The  Company  plans to drill up to 65 gross (38.5 net) wells in the Uinta
Basin  during 1998 at a projected  cost of up to $15 million.  In addition,  the
Company  plans to drill up to 20 pilot wells in the Raton Basin at an  estimated
cost of up to $5.5  million  during the same time period.  Finally,  the Company
plans to drill with an industry  partner at least three gross (1.5 net) wells in
Victoria and DeWitt Counties in South Texas.

       Cash Flow and Working Capital

       Cash provided by operating  activities  was $1,633,000 for the year ended
December  31,  1997.  The  Company  used cash on hand,  proceeds  from  sales of
property and equipment of $746,000,  $10,000,000 of its revolving line of credit
and a portion  of the  Offering  proceeds  to  finance  $16,260,000  of  capital
spending to drill and complete 29 net wells, acquire the Raton Basin acreage and
pipeline and complete the water  distribution  system in the Company's  Antelope
Creek Field.  Additionally,  the Company incurred $1,485,000 in organization and
financing costs associated with the Offering and renewing the Credit  Agreement.
During the fourth  quarter of 1997,  the Company  completed  its initial  public
offering  of  2,625,000  shares of common  stock at $12.50 per share,  including
125,000  shares of the  underwriters'  over-allotment  option,  resulting in net
proceeds to the Company of  $30,516,000.  Approximately  $10,000,000  of the net
proceeds  were used to  eliminate  all  outstanding  amounts  under  the  Credit
Agreement. As a result of this activity, the Company's working capital increased
from a deficit of  ($541,000) to a positive of  $14,872,000.  The balance of the
proceeds are expected to be utilized to develop  production  and reserves in the
Company's core Uinta Basin and Raton Basin development  properties and for other
working capital needs.

       During 1996, the Company generated cash flow from operating activities of
$4,129,000 and received proceeds from sales of oil and natural gas properties of
$8,968,000.  During the same period, the Company incurred  $8,665,000 in capital
expenditures and repaid $5,909,000 of outstanding debt.

       The Company believes that cash flow from operations,  availability  under
the Credit  Agreement  and the  remaining  proceeds  from the  Offering  will be
adequate  to support  its  budgeted  working  capital  and  capital  expenditure
requirements  for at least the next 12 months.  The Company  believes that after
1998 it will require a combination  of  additional  financing and cash flow from
operations to implement its future development plans. The Company currently does
not have any arrangements with respect to, or sources of,  additional  financing
other  than  the  Credit  Agreement,  and  there  can be no  assurance  that any
additional financing will be available to the Company on acceptable terms, if at
all. In the event sufficient capital is not available, the Company may be unable
to develop its Uinta Basin properties in accordance with its planned schedule.

                                       18

<PAGE>


       Financing

       In September 1997, the Company entered into the Amended and Restated Loan
Agreement  with The Chase  Manhattan  Bank  ("Chase")  (as amended,  the "Credit
Agreement").  The Credit Agreement  includes a $20.0 million  combination credit
facility with a two-year  revolving  credit facility with an original  borrowing
base of $7.5  million to be  redetermined  semi-annually  ("Tranche  A"),  which
expires on September  15, 1999,  at which time all  balances  outstanding  under
Tranche  A  will  convert  to a  term  loan  expiring  on  September  15,  2002.
Additionally,  the Credit Agreement  contains a separate  revolving  facility of
$2.5 million  ("Tranche  B"), which expires on March 15, 1999, at which time all
balances outstanding become immediately payable.  Prior to the completion of the
Offering,  the  Company  had total  outstanding  obligations  under  the  Credit
Agreement of $10.0 million.  The Company utilized a portion of the proceeds from
the Offering to eliminate all outstanding  amounts under the Credit Agreement on
October 24, 1997.  With the  repayment of the Tranche B  indebtedness,  the $2.5
million  under that portion of the Credit  Agreement is not longer  available to
the Company.  Interest on borrowings  outstanding under Tranche A is calculated,
at the Company's  option,  at either Chase's prime rate or the London  interbank
offer rate plus a margin determined by the amount outstanding under the tranche.

Inflation and Changes in Prices

       The Company's revenue and the value of its oil and natural gas properties
have been, and will continue to be, affected by levels of and changes in oil and
natural gas prices.  The Company's ability to obtain capital through  borrowings
and other means is also  substantially  dependent on prevailing and  anticipated
oil  and  natural  gas  prices.  Oil and  natural  gas  prices  are  subject  to
significant  seasonal  and other  fluctuations  that are  beyond  the  Company's
ability to control or  predict.  In an attempt to manage  this price  risk,  the
Company periodically engages in hedging transactions.

       Currently,  annual  inflation  in terms of the  decrease  in the  general
purchasing  power of the  dollar  is  running  much  below  the  general  annual
inflation  rates  experienced  in  the  past.  While  the  Company,  like  other
companies,  continues to be affected by fluctuations in the purchasing  power of
the dollar, such effect is not currently considered significant.

Hedging Transactions

       In the past,  the Company has entered into  hedging  contracts of various
types in an  attempt  to  manage  price  risk with  regard  to a portion  of the
Company's  crude  and  natural  gas  production.  While  use  of  these  hedging
arrangements  limit the downside risk of price declines,  such  arrangements may
also limit the benefits which may be derived from price increases.

       The Company  historically has used various financial  instruments such as
collars,  swaps and  futures  contracts  in an attempt to manage its price risk.
Monthly  settlements  on these  financial  instruments  are  typically  based on
differences  between  the fixed  prices  specified  in the  instruments  and the
settlement  price of  certain  future  contracts  quoted on the NYMEX or certain
other indices.  The instruments which have been historically used by the Company
have not had a  contractual  obligation  which  requires  or allows  the  future
physical delivery of the hedged products.

       The Company had one open hedging  contract at December 31, 1997, which is
a crude oil collar on 309,000  Bbls of oil with a floor  price of $17.00 per Bbl
and a ceiling  price of $20.75 per Bbl indexed to the NYMEX  light crude  future
settlement price. See Note 7 to the Notes to Combined Financial Statements. This
contract covers 309,000 Bbls of oil over the next two years as follows:

          Year                                Bbls
          ----                              -------
          1998..........................    150,000
          1999 .........................    159,000
            Total ......................    309,000
                                            =======

                                       19

<PAGE>


Information System Issues

      During 1997,  the Company  implemented  a new  accounting  and  operations
system and simultaneously  resolved any "Year 2000" issues. All associated costs
of the system  implementation  are included in the  Company's  combined  balance
sheet as of December  31,  1997.  Future  costs  associated  with the  continued
implementation are projected by the Company's management to be immaterial.

Cautionary Statements for Purpose of the "Safe Harbor" Provisions of the Private
Securities Litigation Reform Act of 1995

      Petroglyph or its  representatives  may make forward  looking  statements,
oral or written, including statements in this report, press releases and filings
with the SEC,  regarding  estimated future net revenues from oil and natural gas
reserves and the present value thereof,  planned capital expenditures (including
the amount and nature thereof),  increases in oil and gas production, the number
of wells the Company anticipates drilling in specified periods and the Company's
financial position,  business strategy and other plans and objectives for future
operations.  Although the Company  believes that the  expectations  reflected in
these forward looking statements are reasonable,  there can be no assurance that
the actual results or  developments  anticipated by the Company will be realized
or, even if substantially  realized, that they will have the expected effects on
its business or operations. Among the factors that could cause actual results to
differ materially from the Company's expectations are risks inherent in drilling
and other development  activities,  the timing and event of changes in commodity
prices,  unforeseen engineering and mechanical or technological  difficulties in
drilling   wells  and   implementing   enhanced  oil  recovery   programs,   the
availability,  proximity and capacity of  refineries,  pipelines and  processing
facilities,  shortages or delays in the delivery of equipment and services, land
issues,  federal and state  regulatory  developments and other factors set forth
among  the risk  factors  noted  below or in the  description  of the  Company's
business in Item 1 of this  report.  All  subsequent  oral and  written  forward
looking  statements  attributable to the Company or persons acting on its behalf
are expressly qualified in their entirety by these factors.  The Company assumes
no obligation to update any of these statements.

      Volatility  of  Oil  and  Natural  Gas  Prices.  The  Company's  revenues,
operating results, profitability and future growth and the carrying value of its
oil and natural  gas  properties  are  substantially  dependent  upon the prices
received for the  Company's oil and natural gas.  Historically,  the markets for
oil and natural gas have been volatile and such volatility may continue or recur
in the future.  Various  factors  beyond the control of the Company  will affect
prices of oil and natural gas,  including the worldwide and domestic supplies of
oil and natural gas, the ability of the members of the Organization of Petroleum
Exporting Countries to agree to and maintain oil price and production  controls,
political instability or armed conflict in oil or natural gas producing regions,
the price and level of foreign imports, the level of consumer demand, the price,
availability  and acceptance of alternative  fuels, the availability of pipeline
capacity, weather conditions,  domestic and foreign governmental regulations and
taxes and the overall economic environment.

      Any significant decline in the price of oil or natural gas would adversely
affect the Company's  revenues,  operating income (loss) and cash flow and could
require an impairment in the carrying value of the Company's oil and natural gas
properties.

      Uncertainty of Reserve Information and Future Net Revenue Estimates. There
are numerous  uncertainties  inherent in estimating quantities of proved oil and
natural  gas  reserves  and their  values,  including  many  factors  beyond the
Company's  control.  Estimates  of  proved  undeveloped  reserves  and  reserves
recoverable  through  enhanced  oil  recovery   techniques,   which  comprise  a
significant  portion of the Company's  reserves,  are by their nature uncertain.
The reserve information set forth in this Prospectus  represents estimates only.
Although the Company believes such estimates to be reasonable, reserve estimates
are imprecise and should be expected to change as additional information becomes
available.


                                       20
<PAGE>


      Estimates of oil and natural gas reserves,  by necessity,  are projections
based  on  engineering  data,  and  there  are  uncertainties  inherent  in  the
interpretation  of such  data  as well as the  projection  of  future  rates  of
production and the timing of development expenditures.  Reserve engineering is a
subjective  process of estimating  underground  accumulations of oil and natural
gas that are  difficult to measure.  The  accuracy of any reserve  estimate is a
function  of  the  quality  of  available   data,   engineering  and  geological
interpretation  and  judgment.  In  particular,  given  the  early  stage of the
Company's  development  programs,  the  ultimate  effect  of  such  programs  is
difficult to ascertain.  Estimates of  economically  recoverable oil and natural
gas  reserves and of future net cash flows  necessarily  depend upon a number of
variable  factors and assumptions,  such as historical  production from the area
compared with  production  from other  producing  areas,  the assumed effects of
improved  recovery  techniques  such as the  enhanced  oil  recovery  techniques
utilized by the Company,  the assumed effects of regulations by governmental and
tribal  agencies and assumptions  concerning  future oil and natural gas prices,
future  operating  costs,  severance  and excise  taxes,  development  costs and
workover and remedial  costs,  all of which may in fact vary  considerably  from
actual results.  For these reasons,  estimates of the  economically  recoverable
quantities  of oil and  natural  gas  attributable  to any  particular  group of
properties,  classifications  of such  reserves  based on risk of  recovery  and
estimates   of  the  future  net  cash  flows   expected   therefrom   may  vary
substantially.  Any  significant  variance in the assumptions  could  materially
affect the  estimated  quantity and value of the  reserves.  Actual  production,
revenues and  expenditures  with respect to the  Company's  reserves will likely
vary from estimates, and such variances may be material.

      The PV-10  referred  to in this  report  should  not be  construed  as the
current market value of the estimated oil and natural gas reserves  attributable
to the Company's  properties.  In accordance with applicable  requirements,  the
estimated  discounted  future net cash flows from proved  reserves  are based on
prices and costs as of the date of the  estimate,  whereas  actual future prices
and costs may be materially  higher or lower.  Actual future net cash flows also
will be affected by factors such as the amount and timing of actual  production,
supply and demand for oil and natural gas,  refinery  capacity,  curtailments or
increases in consumption  by natural gas purchasers and changes in  governmental
regulations or taxation.  The timing of actual future net cash flows from proved
reserves, and thus their actual present value, will be affected by the timing of
both  the  production  and  the  incurrence  of  expenses  in  connection   with
development and production of oil and natural gas properties.  In addition,  the
10% discount factor, which is required to be used to calculate discounted future
net cash flows for reporting  purposes,  is not necessarily the most appropriate
discount  factor  based on interest  rates in effect from time to time and risks
associated with the Company or the oil and natural gas industry in general.

      Limited Operating  History.  The Company,  which began operations in April
1993, has a limited operating history upon which the Company's  stockholders may
base their  evaluation  of the Company's  performance.  As a result of its brief
operating history,  expanded drilling program and change in the Company's mix of
properties  during such period as a result of its acquisition and disposition of
properties,  the operating results from the Company's historical periods may not
be indicative of future results. There can be no assurance that the Company will
continue to experience  growth in, or maintain its current  level of,  revenues,
oil and natural gas reserves or production. In addition, the Company's expansion
has placed significant demands on its administrative,  operational and financial
resources  and the Company is in the process of  implementing  a new  accounting
system.  Any  future  growth of the  Company's  oil and  natural  gas  reserves,
production  and  operations  would  place  significant  further  demands  on the
Company's financial, operational and administrative resources.

      History of Operating  Losses and Net Losses.  The Company has  experienced
operating  losses  in each  year  since  its  inception  in 1993,  including  an
operating  loss of  approximately  $25,000 in 1997.  Excluding the effect of the
$1.3 million gain on the sale of the 50% interest in Antelope Creek in 1996, the
Company also has experienced net losses in each year since its inception. During
1997,  the Company  incurred an operating  loss and a net loss of  approximately
$25,000 and $2.4  million,  respectively.  The  Company's  net loss for the year
ended  December 31, 1997 was due to a one-time $2.5 million  non-cash  provision
for 1997 income taxes resulting from the Company's conversion from a partnership
to a  corporation.  Although the Company  expects its results of  operations  to
improve as it  completes  additional  Uinta Basin wells and  develops  its Raton
Basin acreage,  there is no assurance that the Company will achieve,  or be able
to sustain, profitability.


                                       21
<PAGE>


      Early Stages of Development  Activities.  The Company's  development  plan
includes  (i) the drilling of  development  and  exploratory  wells in the Uinta
Basin, together with injection wells that are intended to repressurize producing
reservoirs in the Lower Green River formation, (ii) subject to the evaluation of
the results of a pilot program,  the drilling of exploratory wells in connection
with the  development of a coalbed  methane project in the Raton Basin and (iii)
the use of 3-D seismic  technology to exploit its properties in south Texas. The
success of these projects will be materially  dependent on whether the Company's
development and  exploratory  wells can be drilled and completed as commercially
productive wells,  whether the enhanced oil recovery techniques can successfully
repressurize  reservoirs  and  increase  the  rate of  production  and  ultimate
recovery of oil and natural  gas from the  Company's  acreage in the Uinta Basin
and whether the Company can  successfully  implement its planned coalbed methane
project on its acreage in the Raton  Basin.  Although  the Company  believes the
geologic characteristics of its project areas reduce the probability of drilling
nonproductive  wells,  there can be no  assurance  that the  Company  will drill
productive  wells. If the Company drills a significant  number of  nonproductive
wells,  the Company's  business,  financial  condition and results of operations
would be materially  adversely affected.  While the Company's pilot enhanced oil
recovery projects in the Uinta Basin have indicated that rates of oil production
can  be  increased,   the   repressurization   takes  place  over  a  period  of
approximately two years, with full response  occurring after  approximately five
years;  therefore,  the ultimate effect of the enhanced oil recovery  operations
will not be known for several years.  Ultimate recoveries of oil and natural gas
from the  enhanced oil  recovery  programs may also vary at different  locations
within the Company's Uinta Basin properties. Accordingly, due to the early stage
of  development,  the  Company  is unable to  predict  whether  its  development
activities  in the  Uinta  Basin  will meet its  expectations.  In the event the
Company's  enhanced oil recovery program does not effectively  increase rates of
production  or  ultimate  recovery  of oil  reserves,  the  Company's  business,
financial condition and results of operation will likely be materially adversely
affected.

      Risks Associated with Operating in the Uinta Basin

      Concentration  in Uinta Basin.  The  Company's  properties  in the Greater
Monument  Butte  Region  of the  Uinta  Basin  constitute  the  majority  of the
Company's  existing  inventory of producing  properties and drilling  locations.
Approximately  85% of the Company's 1997 capital  expenditures of  approximately
$16.3 million was dedicated to  developing  the Company's  enhanced oil recovery
projects in this area.  There can be no assurance that the Company's  operations
in the  Uinta  Basin  will  yield  positive  economic  returns.  Failure  of the
Company's Uinta Basin properties to yield significant quantities of economically
attractive  reserves and production  would have a material adverse impact on the
Company's  financial  condition and results of operations.  In addition,  recent
heavy drilling activity by a number of operators in the Uinta Basin may increase
the cost to  acquire  additional  acreage  in this  area,  reduce  or limit  the
availability  of drilling and service rigs,  equipment  and supplies,  or reduce
demand for the Company's production,  any of which would impact the Company more
adversely than if the Company were more geographically diversified.

      Limited Refining  Capacity for Uinta Basin Black Wax. The marketability of
the Company's oil production  depends in part upon the  availability,  proximity
and capacity of refineries,  pipelines and processing facilities.  The crude oil
produced in the Uinta  Basin is known as "black  wax" or "yellow  wax" and has a
higher paraffin  content than crude oil found in most other major North American
basins.  Currently,  the most  economic  markets  for the  Company's  black  wax
production are five refineries in Salt Lake City that have limited facilities to
refine efficiently this type of crude oil. Because these refineries have limited
capacity,  any  significant  increase in Uinta Basin "black wax"  production  or
temporary or permanent  refinery  shutdowns  due to  maintenance,  retrofitting,
repairs, conversions to or from "black wax" production or otherwise could create
an over supply of "black wax" in the market,  causing prices for Uinta Basin oil
to decrease.  Since July 1996,  the posted prices for Uinta Basin oil production
have been lower than major national  indexes for crude oil. The Company believes
these  differences are  attributable  to one or more market  factors,  including
refinery capacity constraints caused by scheduled maintenance at one of the Salt
Lake  City  refineries,  the  increase  in  supply of Uinta  Basin  "black  wax"
production  resulting from the recent  drilling  activity or the reaction to the
potential  availability  of  additional  non-Uinta  Basin  crude oil  production
associated  with a new  pipeline.  There can be no  assurance  that  prices will
return to  historical  levels or that  other  price  declines  related to supply
imbalances will not occur in the future.  To the extent crude oil prices decline
further or the Company is unable to market  efficiently its oil production,  the
Company's  business,  financial  condition  and results of  operations  could be
materially adversely affected.


                                       22
<PAGE>


      Marketability  of  Natural  Gas  Production.  The  Company's  Uinta  Basin
properties  currently  produce natural gas in association with the production of
crude oil. The produced  natural gas is gathered into the Company's  natural gas
pipeline gathering system and compressed into an interstate natural gas pipeline
at which  point the  produced  natural  gas is sold to  marketers  or end users.
Because current state and Ute tribal regulations prohibit the flaring or venting
of natural gas produced in the Uinta  Basin,  in the event the Company is unable
to market its natural gas  production  due to pipeline  capacity  constraints or
curtailments,  the  Company  may be  forced  to shut in or  curtail  its oil and
natural  gas  production  from any  affected  wells  or  install  the  necessary
facilities  to reinject the natural gas into existing  wells.  Federal and state
regulation of oil and natural gas production and transportation,  tax and energy
policies, changes in supply and demand and general economic conditions all could
adversely  affect the  Company's  ability to produce and market its natural gas.
Any dramatic  change in any of these market  factors or  curtailment  of oil and
natural gas production  due to the Company's  inability to vent or flare natural
gas could have a material adverse effect on the Company.

      Availability  of Water for Enhanced Oil Recovery  Program.  The  Company's
enhanced oil  recovery  program  involves  the  injection of water into wells to
pressurize reservoirs and, therefore,  requires substantial quantities of water.
The  Company  intends  to  satisfy  its  requirements  from one or more of three
sources:  water  produced  from water wells,  water  purchased  from local water
districts and water produced in  association  with oil  production.  The Company
currently  has drilled water wells only in the Antelope  Creek field,  and there
can be no assurance  that these water wells will continue to produce  quantities
sufficient  to support the  Company's  enhanced oil recovery  program,  that the
Company will be able to obtain the necessary approvals to drill additional water
wells or that  successful  water  wells can be drilled in its other  Uinta Basin
development  areas. The Company has a contract with East Duchesne Water District
to purchase up to 10,000  barrels of water per day through  September  30, 2004.
After the initial  term,  this contract  automatically  renews each year for one
additional year;  however,  either party may terminate the agreement with twelve
months prior notice.  In the event of a water shortage,  the East Duchesne Water
District  contract  provides  that  preferences  will be  given  to  residential
customers  and other  water  customers  having a higher  use  priority  than the
Company.  In  addition,  the Company has not yet secured a water source for full
development  of  its  Natural  Buttes  Extension  properties.  There  can  be no
assurance  that water  shortages will not occur or that the Company will be able
to renew or enter into new water supply  agreements on  commercially  reasonable
terms or at all. To the extent the Company is required to pay additional amounts
for its  supply of water,  the  Company's  financial  condition  and  results of
operations may be adversely affected. While the Company believes that there will
be  sufficient  volumes of water  available to support its improved oil recovery
program and has taken certain actions to ensure an adequate water supply will be
available, in the event the Company is unable to obtain sufficient quantities of
water,  the  Company's  enhanced  oil  recovery  program and  business  would be
materially adversely affected.

      Risks Associated with Planned Operations in the Raton Basin

      Coalbed Methane Production.  During the last ten years, new technology has
lowered  the  cost  of  coalbed  methane  production,  making  such  development
commercially  viable in areas  where  production  was  previously  thought to be
uneconomic.  While the  Company  believes  that these new  technologies  will be
applicable to its acreage in the Raton Basin, the Company has recently begun its
development  program.  There can be no assurance that this program will discover
natural  gas  and,  if  natural  gas is  discovered,  that the  Company  will be
successful in completing commercially productive wells.

      Dependence  on  Third  Party  Expertise.  Based on its  limited  operating
experience  in the Raton  Basin,  the  Company  intends  to  engage  independent
contractors  in  connection  with its coalbed  methane  natural gas  development
activities.  There can be no assurance that such technological expertise will be
available to the Company on commercially reasonable terms or at all.

      Water  Disposal.  The Company  believes  that the water  produced from the
Raton Basin coal seams will be low in  dissolved  solids,  allowing the Company,
operating  under permits which the Company  believes will be issued by the State
of Colorado,  to discharge the water into streambeds or stockponds.  However, if
nonpotable  water is  discovered,  it may be  necessary  to install  and operate
evaporators  or to drill disposal wells to reinject the produced water back into
the underground rock formations adjacent to the coal seams or to lower sandstone
horizons. In the event the Company is unable to obtain permits from the State of
Colorado,  if nonpotable  water is  discovered  or if applicable  future laws or
regulations  require water to be disposed of in an alternative manner, the costs
to dispose of produced water will increase, which increase could have a material
adverse effect on the Company's operations in this area.


                                       23
<PAGE>
      Substantial Capital Requirements.  The Company's current development plans
will require it to make substantial capital  expenditures in connection with the
exploration, development and exploitation of its oil and natural gas properties.
The Company's  enhanced oil recovery  project and pilot coalbed  methane project
require substantial initial capital expenditures.  Historically, the Company has
funded its capital  expenditures  through a combination of internally  generated
funds from sales of production or properties,  equity  contributions,  long-term
debt financing and short-term  financing  arrangements.  The Company anticipates
that the net proceeds from the Offering in October 1997, together with cash flow
from operations and availability under the Credit Agreement,  will be sufficient
to meet its estimated  capital  expenditure  requirements  for 1998. The Company
believes  that it will require a combination  of  additional  financing and cash
flow from  operations to implement  its future  development  plans.  The Company
currently  does not have any  arrangements  with  respect  to,  or  sources  of,
additional  financing  other  than the  Credit  Agreement,  and  there can be no
assurance  that any  additional  financing  will be  available to the Company on
acceptable  terms or at all. Future cash flows and the availability of financing
will be subject to a number of variables,  such as the level of production  from
existing wells, prices of oil and natural gas, the Company's success in locating
and producing new reserves and the success of the enhanced  recovery  program in
the Uinta  Basin and the  coalbed  methane  project in the Raton  Basin.  To the
extent that future financing  requirements are satisfied through the issuance of
equity securities,  the Company's existing  stockholders may experience dilution
that could be  substantial.  The incurrence of debt financing  could result in a
substantial  portion of the Company's operating cash flow being dedicated to the
payment of principal and interest on such indebtedness, could render the Company
more vulnerable to competitive pressures and economic downturns and could impose
restrictions  on the  Company's  operations.  If revenue  were to  decrease as a
result of lower oil and natural gas prices,  decreased  production or otherwise,
and the  Company had no  availability  under the Credit  Agreement  or any other
credit facility, the Company could have a reduced ability to execute its current
development plans,  replace its reserves or to maintain production levels, which
could result in decreased production and revenue over time.

      Compliance with Governmental and Tribal  Regulations.  Oil and natural gas
operations  are  subject  to  extensive  federal,   state  and  local  laws  and
regulations relating to the exploration for, and the development, production and
transportation of, oil and natural gas, as well as safety matters,  which may be
changed  from time to time in response to economic or political  conditions.  In
addition,  approximately  33% of the Company's  acreage is located on Ute tribal
land  and is  leased  by the  Company  from  the Ute  Indian  Tribe  and the Ute
Distribution  Corporation.  Because the Ute tribal authorities have certain rule
making  authority  and  jurisdiction,  such  leases  may be subject to a greater
degree of  regulatory  uncertainty  than  properties  subject  to only state and
federal  regulations.  Although  the Company has not  experienced  any  material
difficulties  with its Ute tribal leases or in complying with Ute tribal laws or
customs,  there  can be no  assurance  that  material  difficulties  will not be
encountered  in the future.  Matters  subject to regulation  by federal,  state,
local and Ute tribal authorities include permits for drilling  operations,  road
and pipeline construction,  reports concerning operations, the spacing of wells,
unitization and pooling of properties,  taxation and  environmental  protection.
Prior to  drilling  any wells in the Uinta  Basin,  applicable  federal  and Ute
tribal requirements and the terms of its development agreements will require the
Company  to have  prepared  by third  parties  and  submitted  for  approval  an
environmental and archaeological  assessment for each area to be developed prior
to drilling any wells in such areas.  Although  the Company has not  experienced
any material  delays that have affected its development  plans,  there can be no
assurance that delays will not be encountered in the  preparation or approval of
such  assessments,  or that the results of such assessments will not require the
Company to alter its  development  plans.  Any delays in obtaining  approvals or
material  alterations to the Company's  development  plans could have a material
adverse  effect  on the  Company's  operations.  From  time to time,  regulatory
agencies  have  imposed  price   controls  and   limitations  on  production  by
restricting  the  rate of  flow  of oil  and  natural  gas  wells  below  actual
production  capacity  in order to  conserve  supplies  of oil and  natural  gas.
Although  the  Company  believes  it  is  in  substantial  compliance  with  all
applicable  laws and  regulations,  the  requirements  imposed  by such laws and
regulations  are  frequently  changed  and  subject to  interpretation,  and the
Company  is unable  to  predict  the  ultimate  cost of  compliance  with  these
requirements or their effect on its operations.  Significant expenditures may be
required to comply with governmental and Ute tribal laws and regulations and may
have a material adverse effect on the Company's  financial condition and results
of operations.

      Compliance with Environmental  Regulations.  The Company's  operations are
subject to complex and constantly  changing  environmental  laws and regulations
adopted by federal, state and local governmental authorities. The implementation
of new,  or the  modification  of  existing,  laws or  regulations  could have a
material  adverse  effect on the Company.  The discharge of oil,  natural gas or
other  pollutants  into the  air,  soil or water  may give  rise to  significant
liabilities  on the part of the Company to the  government and third parties and
may require the Company to incur substantial costs of remediation. Moreover, the
Company has agreed to indemnify  sellers of properties  purchased by the Company
against  certain  liabilities  for  environmental  claims  associated  with such
properties.  No  assurance  can be given  that  existing  environmental  laws or
regulations,  as currently interpreted or reinterpreted in the future, or future
laws or regulations will not materially  adversely affect the Company's  results
of operations and financial condition or that material indemnity claims will not
arise against the Company with respect to properties acquired by the Company.

                                       24
<PAGE>


      Reserve  Replacement  Risk. The Company's  future success depends upon its
ability to find, develop or acquire additional oil and natural gas reserves that
are economically recoverable.  The proved reserves of the Company will generally
decline as reserves are depleted, except to the extent that the Company conducts
successful  exploration  or  development   activities,   enhanced  oil  recovery
activities or acquires properties containing proved reserves.  Approximately 49%
of the Company's total proved reserves at December 31, 1997 were undeveloped. In
order to increase  reserves  and  production,  the  Company  must  continue  its
development and exploitation  drilling  programs or undertake other  replacement
activities.  The Company's  current  development  plan includes  increasing  its
reserve base through  continued  drilling,  development and  exploitation of its
existing  properties.  There can be no  assurance,  however,  that the Company's
planned  development  and  exploitation  projects  will  result  in  significant
additional  reserves or that the Company will have continuing  success  drilling
productive wells at anticipated finding and development costs.

      In  addition to the  development  of its  existing  proved  reserves,  the
Company  expects that its inventory of unproved  drilling  locations will be the
primary  source  of new  reserves,  production  and cash  flow over the next few
years.  The Company's  properties in the Uinta Basin  constitute the majority of
the Company's existing inventory. Approximately 69% of the Company's fiscal year
1998 capital  expenditure  budget is expected to be associated with drilling and
acreage acquisition  activity in the Uinta Basin. There can be no assurance that
the Company's  activities in the Uinta Basin will yield  economic  returns.  The
failure  of the Uinta  Basin to yield  significant  quantities  of  economically
recoverable  reserves  could have a  material  adverse  impact on the  Company's
future  financial  condition  and results of  operations  and could  result in a
write-off of a significant portion of its investment in the Uinta Basin.

      Dependance  on Key  Personnel.  The  Company's  success  has been and will
continue to be highly dependent on Robert C. Murdock, its Chairman of the Board,
President and Chief Executive Officer, Robert A. Christensen, its Executive Vice
President and Chief Technical Officer,  Sidney Kennard Smith, its Executive Vice
President  and Chief  Operating  Officer,  and a limited  number of other senior
management and technical  personnel.  Loss of the services of Mr.  Murdock,  Mr.
Christensen,  Mr. Smith or any of those other  individuals could have a material
adverse effect on the Company's operations.  The Company's failure to retain its
key personnel or hire additional  personnel could have a material adverse effect
on the Company.

      Acquisition Risks. The Company has grown primarily through the acquisition
and  development  of its oil and natural gas  properties.  Although  the Company
expects to concentrate  on such  activities in the future,  the Company  expects
that it may  evaluate  and pursue  from time to time  acquisitions  in the Uinta
Basin,  the Raton Basin and in other areas that  provide  attractive  investment
opportunities  for the  addition of  production  and  reserves and that meet the
Company's selection criteria. The successful acquisition of producing properties
and undeveloped acreage requires an assessment of recoverable  reserves,  future
oil and natural gas prices,  operating costs, potential  environmental and other
liabilities and other factors beyond the Company's  control.  This assessment is
necessarily inexact and its accuracy is inherently uncertain. In connection with
such an assessment,  the Company performs a review of the subject  properties it
believes to be  generally  consistent  with  industry  practices.  This  review,
however, will not reveal all existing or potential problems,  nor will it permit
a buyer to become  sufficiently  familiar  with the  properties  to assess fully
their  deficiencies and capabilities.  Inspections may not be performed on every
well, and structural and environmental  problems are not necessarily  observable
even when an inspection is undertaken.  The Company generally assumes preclosing
liabilities,   including  environmental  liabilities,   and  generally  acquires
interests  in  the  properties  on  an  "as  is"  basis.  With  respect  to  its
acquisitions  to date,  the  Company  has no  material  commitments  for capital
expenditures to comply with existing environmental requirements. There can be no
assurance that any acquisitions will be successful. Any unsuccessful acquisition
could have a material adverse effect on the Company.

ITEM 8.     FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

      The  Company's  Combined  Financial  Statements  required by this item are
included on the pages  immediately  following  the Index to  Combined  Financial
Statements appearing on page F-1.


                                       25

<PAGE>


ITEM 9.CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL
       DISCLOSURE

       None.

                                    PART III

ITEM 10.DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

      The  information  required by this item is  incorporated  by  reference to
information  under the caption  "Proposal 1 - Election of Directors"  and to the
information  under the caption  "Compliance with Section 16(a) of the Securities
Exchange Act of 1934" in the Company's  definitive  Proxy  Statement  (the "1998
Proxy  Statement")  for its annual meeting of stockholders to be held on May 27,
1998.  The 1998 Proxy  Statement  will be filed with the Securities and Exchange
Commission (the "Commission") not later than 120 days subsequent to December 31,
1997.

      Pursuant to Item 401(b) of  Regulation  S-K, the  information  required by
this item with respect to executive officers of the Company is set forth in Part
I of this report.


ITEM 11.    EXECUTIVE COMPENSATION

      The information  required by this item is incorporated herein by reference
to the 1998 Proxy  Statement,  which will be filed with the Commission not later
than 120 days subsequent to December 31, 1997.


ITEM 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

      The information  required by this item is incorporated herein by reference
to the 1998 Proxy  Statement,  which will be filed with the Commission not later
than 120 days subsequent to December 31, 1997.


ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTION

      The information  required by this item is incorporated herein by reference
to the 1998 Proxy  Statement,  which will be filed with the Commission not later
than 120 days subsequent to December 31, 1997.


                                     PART IV

ITEM 14.    EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 10-K

(a)   1.    Combined Financial Statements:

            See Index to Combined Financial Statements on page F-1.

      2.    Financial Statement Schedules:

            See Index to Combined Financial Statements on page F-1.


      3.    Exhibits:  The following documents are filed as exhibits to this 
            report:

                                       26
<PAGE>


Exhibit
Number                         Description of Document
- --------                       ------------------------

 2    Exchange Agreement (filed  as  Exhibit 2 to the Company's Registration  
      Statement on Form S-1, Registration No. 333-34241, and incorporated herein
      by reference).

3.1   Certificate of Incorporation (filed as Exhibit 3.1 to the Company's  
      Registration Statement on Form S-1, Registration No. 333-34241, 
      and incorporated herein by reference).

3.2   Bylaws (filed as Exhibit 3.2 to the Company's Registration Statement  on  
      Form S-1, Registration No.333-34241, and incorporated herein by reference)

4     Form of Common Stock Certificate (filed as Exhibit 4 to the Company's  
      Registration Statement on Form S-1, Registration No. 333-34241, and 
      incorporated herein by reference).

10.1  Stockholders Agreement(filed as Exhibit 10.1 to the Company's Registration
      Statement on Form S-1, Registration No. 333-34241, and incorporated herein
      by reference).

10.2  Registration  Rights  Agreement  (filed  as  Exhibit  10.2 to the
      Company's  Registration  Statement on Form S-1,  Registration No.
      333-34241, and incorporated herein by reference).

10.3  Financial  Advisory Services  Agreement (filed as Exhibit 10.3 to
      the Company's  Registration  Statement on Form S-1,  Registration
      No. 333-34241, and incorporated herein by reference).

10.4  1997  Incentive  Plan  (filed as  Exhibit  10.4 to the  Company's
      Registration  Statement on Form S-1,  Registration No. 333-34241,
      and incorporated herein by reference).

10.5  Form  of  Confidentiality   and  Noncompete   Agreement  between  the
      Registrant  and each of its  executive  officers  (filed as Exhibit  
      10.5 to the Company's Registration Statement on Form S-1, Registration No.
      333-34241,  and incorporated herein by reference).

10.6  Form of Indemnity Agreement between the Registrant and each of its
      executive officers (filed as Exhibit 10.6 to the Company's  Registration  
      Statement on Form S-1, Registration No. 333-34241, and incorporated herein
      by reference).

10.7  Amended and Restated Loan Agreement,  dated September 15, 1997, among 
      Petroglyph Gas Partners, L.P., Petroglyph  Energy,  Inc.  and The Chase 
      Manhattan  Bank  (filed as Exhibit  10.7 to the  Company's Registration  
      Statement  on Form  S-1,  Registration  No.  333-34241,  and  incorporated
      herein  by reference).

10.8  Asset Purchase and Sale Agreement, dated as of June 1, 1996, by and 
      between Petroglyph Gas Partners,  L.P., and CoEnergy Enhanced  Production,
      Inc.  (filed as Exhibit 10.10 to the Company's Registration  Statement  on
      Form  S-1,  Registration  No.  333-34241,  and  incorporated  herein  by
      reference).

10.9  Assignment of mining lease dated June 26, 1996 by Petroglyph Gas Partners,
      L.P. to CoEnergy Enhanced  Production,  Inc. (filed as Exhibit  10.11 to 
      the  Company's  Registration  Statement on Form S-1,  Registration  No.  
      333-34241,  and  incorporated  herein by reference).

10.10 Cooperative  Plan of  Development  and Operation for the Antelope   Creek 
      Enhanced Recovery Project  Duchesne,  County Utah, dated as of  February  
      17,  1994,  by  and  between  Petroglyph  Operating Company,  Inc., Inland
      Resources,  Inc., Petroglyph Gas Partners, L.P., Ute Indian Tribe and Ute 
      Distribution Corporation (filed as Exhibit  10.12 to the  Company's  
      Registration  Statement on Form S-1,  Registration  No.  333-34241,  and  
      incorporated  herein by      reference).

                                       27
<PAGE>


10.11 Exploration  and  Development  Agreement  between  The Ute Indian  Tribe,
      The  Ute  Distribution  Corporation  and  Petroglyph  Gas Partners,   L.P.
      (filed  as  Exhibit  10.13  to  the  Company's Registration  Statement on 
      Form S-1, Registration No. 333-34241, and incorporated herein by 
      reference).

10.12 Antelope Creek Unit Participation Agreement,  dated as of June 1, 1996, by
      and between Petroglyph  Operating Company, Inc., Petroglyph Gas Partners,
      L.P. and CoEnergy Enhanced Production, Inc. (filed as Exhibit 10.14 to the
      Company's Registration  Statement on Form S-1, Registration No. 333-34241,
      and incorporated herein by reference).

10.13 Unit Operating  Agreement Unit,  dated June 1, 1996, by and between  
      Petroglyph  Operating  Company, Inc., Petroglyph Gas Partners,  L.P. and 
      CoEnergy Enhanced Production, Inc.(filed as Exhibit 10.15 to the Company's
      Registration  Statement on Form S-1, Registration No. 333-34241, and 
      incorporated herein by reference).

10.14 Water Agreement, dated October 1, 1994, between East Duchesne Culinary 
      Water Improvement District and Petroglyph Operating Company, Inc. (filed  
      as Exhibit 10.16 to the Company's Registration  Statement on Form S-1,  
      Registration No. 333-34241, and incorporated herein by reference).

10.15 Asset Purchase and Sale  Agreement, dated May 15, 1997, among Infinity Oil
      & Gas, Inc. and PGP II, L.P. (filed as Exhibit 10.17 to the Company's  
      Registration  Statement on Form S-1, Registration No.333-34241, and 
      incorporated herein by reference).

10.16 Lease Agreement between Hutch Realty,  L.L.C. and Petroglyph Operating  
      Company, Inc. (filed as Exhibit 10.18 to the Company's Registration  
      Statement on Form S-1, Registration No. 333-34241, and incorporated herein
      by reference).

10.17 Letter dated August 21, 1997 from Hutch Realty, L.L.C. to Petroglyph  
      Operating Company, Inc. concerning renewal of Lease Agreement (filed as 
      Exhibit 10.19 to the Company's Registration Statement on Form S-1, 
      Registration No. 333-34241, and incorporated herein by reference).

10.18 Warrant Agreement, dated September 15, 1997, among The Chase Manhattan 
      Bank, Petroglyph Gas Partners, L.P. and Petroglyph Energy, Inc.(filed as 
      Exhibit 10.20 to the Company's Registration Statement on Form S-1, 
      Registration No. 333-34241, and incorporated herein by reference).

10.19 Registration Rights Agreement, dated September 15, 1997, between The Chase
      Manhattan Bank and Petroglyph Energy, Inc. (filed as Exhibit  10.21 to the
      Company's  Registration  Statement on Form
      S-1, Registration No.333-34241, and incorporated herein by reference).

10.20 Guaranty dated September 15, 1997 by Petroglyph Energy, Inc. in favor of 
      The Chase Manhattan Bank (filed as Exhibit 10.22 to the Company's 
      Registration Statement on Form S-1, Registration No. 333-34241, and 
      incorporated herein by reference).

21    Subsidiaries of the Registrant (filed as Exhibit 21 to the Company's 
      Registration Statement on Form S-1,  Registration No. 333-34241, and 
      incorporated herein by reference).

23.2  Consent of Arthur Andersen LLP, independent public accounts 

27    Financial Data Schedule.


(b) No  reports on Form 8-K were  filed  during  the last  quarter of the period
covered by this Annual Report on Form 10-K.

                                       28

<PAGE>


                      GLOSSARY OF OIL AND NATURAL GAS TERMS


      The following are  abbreviations and definitions of terms commonly used in
the oil and gas  industry and this report.  Unless  otherwise  indicated in this
report,  natural gas volumes are stated at the legal  pressure base of the state
or area in which the  reserves are located and at 60 degrees  Fahrenheit  and in
most  instances are rounded to the nearest major  multiple.  BOEs are determined
using the ratio of six Mcf of natural gas to one Bbl of oil.

      Average Finding Costs.  The average amount of total capital  expenditures,
including  acquisition  costs, and exploration and abandonment costs for oil and
natural gas activities  divided by the amount of proved  reserves  (expressed in
BOE) added in the specified  period  (including the effect on proved reserves or
reserve revisions).

     Bbl. One stock tank barrel,  or 42 U.S. gallons liquid volume,  used herein
in reference to oil or other liquid hydrocarbons.

      Bcf.  One billion cubic feet.

     BOE.  Barrels of oil equivalent,  determined  using the ratio of six Mcf of
natural gas to one Bbl of oil, condensate or natural gas liquids.

      Btu or British  thermal  unit.  The quantity of heat required to raise the
temperature of one pound of water by one degree Fahrenheit.

      Coalbed  methane.  Methane gas from coals in the ground,  extracted  using
conventional oil and natural gas industry  drilling and completion  methodology.
The gas produced is usually over 90% methane,  with a small percentage of ethane
and  impurities  such as carbon  dioxide and nitrogen.  Methane is the principal
component  of  natural  gas.   Coalbed   methane  shares  the  same  markets  as
conventional natural gas, via the natural gas pipeline infrastructure.

     Completion.  The installation of permanent  equipment for the production of
oil or natural gas.

     Condensate.  A hydrocarbon  mixture that becomes  liquid and separates from
natural gas when the natural gas is produced and is similar to oil.

      Developed  acreage.  The number of acres which are allocated or assignable
to producing wells or wells capable of production.

      Development  well.  A well  drilled  within the  proved  area of an oil or
natural  gas  reservoir  to the  depth of a  stratigraphic  horizon  known to be
productive.

      Dry well. A well found to be incapable of producing  either oil or natural
gas in  sufficient  quantities  to justify  completion  of an oil or natural gas
well.

      Exploratory well. A well drilled to find and produce oil or natural gas in
an unproved  area,  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.

      Gross acres or gross wells.  The total acres or wells, as the case may be,
in which the Company has a working interest.

      LOE.  Lease operating expenses.

      MBbl. One thousand barrels of crude oil or other liquid hydrocarbons.

      MBOE.  One thousand barrels of oil equivalent.


                                       29
<PAGE>


      Mcf.  One thousand cubic feet of natural gas.

      MMBbl.  One million barrels of oil or other liquid hydrocarbons.

      MMBOE.  One million barrels of oil equivalent.

      MMcf.  One, million cubic feet of natural gas.

      Net acres or net wells. Gross acres or wells multiplied,  in each case, by
the percentage working interest owned by the Company.

     Net production.  Production that is owned by the Company less royalties and
production due others,

      Oil.  Crude oil or condensate.

     Operator.  The  individual  or  company  responsible  for the  exploration,
development, and production of an oil or natural gas well or lease.

      Original  oil in place.  The  estimated  number of barrels of crude oil in
known reservoirs prior to any production.

      Present  Value of Future  Net  Revenues  or PV-10.  The  present  value of
estimated  future net revenues to be  generated  from the  production  of proved
reserves, net of estimated production and ad valorem taxes, future capital costs
and  operating  expenses,  using  prices  and  costs  in  effect  as of the date
indicated,  without  giving  effect to  federal  income  taxes.  The  future net
revenues  have been  discounted  at an  annual  rate of 10% to  determine  their
"present  value." The present  value is shown to indicate  the effect of time on
the value of the revenue  stream and should not be  construed  as being the fair
market value of the properties.

      Proved developed  reserves.  Reserves that can be expected to be recovered
through existing wells with existing equipment and operating methods. Additional
oil and natural gas  expected to be obtained  through the  application  of fluid
injection or other improved  recovery  techniques for  supplementing the natural
forces and mechanisms of primary recovery will 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.

      Proved  reserves.  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.

            i.  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 (A) that portion delineated
      by drilling and defined by natural gas-oil and/or oil-water  contacts,  if
      any; and (B) 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.

            ii. 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.


                                       30
<PAGE>


      Proved  undeveloped  reserves.  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.

     Recompletion.  The completion for  production,  of an existing well bore in
another formation from that in which the well has been previously completed.

      Reserve   replacement  cost.  Total  cost  incurred  for  exploration  and
development,  divided by  reserves  added from all  sources,  including  reserve
discoveries,  extensions  and  improved  recovery  additions,  net  revisions to
reserve estimates and purchases of reserves-in-place.

      Reserves.  Proved reserves.

      Royalty.  An interest in an oil and natural gas lease that gives the owner
of the interest the right to receive a portion of the production from the leased
acreage (or of the proceeds of the sale thereof), but generally does not require
the owner to pay any portion of the costs of drilling or operating  the wells on
the leased acreage.  Royalties may be either  landowner's  royalties,  which are
reserved by the owner of the leased acreage at the time the lease is granted, or
overriding royalties, which are usually reserved by an owner of the leasehold in
connection with a transfer to a subsequent owner.

      Spud.  Start drilling a new well (or restart).

      3-D  seismic.  Seismic  data that are  acquired  and  processed to yield a
three-dimensional picture of the subsurface.

      Tcf.  One trillion cubic feet of natural gas.

      Undeveloped  acreage.  Lease acres 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 or not such acreage contains proved
reserves.  Included  within  undeveloped  acreage are those lease acres (held by
production  under the terms of a lease)  that are not  within the  spacing  unit
containing, or acreage assigned to, the productive well holding such lease.

      Waterflood.  The  injection  of water  into a  reservoir  to fill pores or
fractures vacated by produced fluids,  thus maintaining  reservoir  pressure and
assisting production.

      Working  interest.  An interest in an oil and natural gas lease that gives
the owner of the interest the right to drill for and produce oil and natural gas
on the  leased  acreage  and  requires  the owner to pay a share of the costs of
drilling and production  operations.  The share of production to which a working
interest  owner is entitled  will always be smaller than the share of costs that
the  working  interest  owner is  required  to bear,  with  the  balance  of the
production accruing to the owners of royalties. For example, the owner of a 100%
working  interest in a lease  burdened  only by a  landowner's  royalty of 12.5%
would be  required  to pay 100% of the costs of a well but would be  entitled to
retain 87.5% of the production.

     Workover. Operations on a producing well to restore or increase production.

                                       31
<PAGE>


                                   SIGNATURES

      Pursuant  to the  requirements  of Section  13 or 15(d) of the  Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, hereunder duly authorized, as of March 20, 1998.


                                   PETROGLYPH ENERGY, INC.

                                   Registrant


                                   By: /s/ Robert C. Murdock
                                       ---------------------
                                       Robert C. Murdock
                                       President and Chief Executive Officer


 Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934,  this
report has been signed below as of March 20, 1998, by the  following  persons on
behalf of the Registrant and in the capacity indicated.


 /s/ ROBERT C. MURDOCK
 ---------------------
Robert C. Murdock
President, Chief Executive Officer and Chairman of the Board



/s/ ROBERT A. CHRISTENSEN
- -------------------------
Robert A. Christensen
Executive Vice President and Director



/s/ TIM A. LUCAS
- ----------------
Tim A. Lucas
Vice President, Chief Financial Officer and Treasurer



/s/ DAVID R. ALBIN
- ------------------
David R. Albin
Director



/s/ KENNETH A. HERSH
- --------------------
Kenneth A. Hersh
Director



/s/ A. J. SCHWARTZ
- ------------------
A. J. Schwartz
Director

                                       32
<PAGE>




                                                 
                          INDEX TO FINANCIAL STATEMENTS

                 FINANCIAL STATEMENTS OF PETROGLYPH ENERGY, INC.

                                                                            PAGE

Report of Independent Public Accountants.....................................F-2

Combined Balance Sheets as of December 31, 1997 and 1996.....................F-3

Combined Statements of Operations for the Years Ended 
     December 31, 1997, 1996 and 1995........................................F-4

Combined Statements of Change in Stockholders' Equity for the Years Ended
     December 31, 1997, 1996 and 1995........................................F-5

Combined Statements of Cash Flows for the Years Ended December 31, 1997,
     1996 and 1995...........................................................F-6

Notes to Combined Financial Statements.......................................F-7











                                      F-1

<PAGE>


                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To the Stockholders of Petroglyph Energy, Inc.:

 We have audited the accompanying  combined balance sheets of Petroglyph Energy,
Inc. (a Delaware  corporation)  and subsidiary as of December 31, 1997 and 1996,
and the related  combined  statements of  operations,  changes in  stockholders'
equity,  and cash flows for each of the three years in the period ended December
31, 1997.  These financial  statements are the  responsibility  of the Company's
management.  Our  responsibility  is to express  an  opinion on these  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 financial  statements referred to above present fairly, in
all material  respects,  the combined  financial  position of Petroglyph Energy,
Inc.  and  subsidiary  as of  December  31, 1997 and 1996 and the results of its
operations  and cash  flows  for each of the  three  years in the  period  ended
December 31, 1997, in conformity with generally accepted accounting principles.


ARTHUR ANDERSEN LLP
Dallas, Texas,
   February 27, 1998










                                      F-2
<PAGE>
<TABLE>


                                               PETROGLYPH ENERGY, INC.

                                               COMBINED BALANCE SHEETS

                                                             December 31,
                                                  ------------------------------
                                                       1997              1996
                                                  -------------     ------------
<S>                                               <C>               <C>   
     ASSETS
Current Assets:
     Cash and cash equivalents................... $ 16,678,655      $ 1,577,632
     Accounts receivable:
         Oil and natural gas sales...............      665,214        1,178,287
         Joint interest billing..................      463,400          152,118
         Other...................................      144,684           85,037
                                                  -------------     ------------
                                                     1,273,298        1,415,442

     Inventory...................................    1,376,737        1,064,802
     Prepaid expenses............................      246,193          125,045
                                                  -------------     ------------
                  Total Current Assets...........   19,574,883        4,182,921
                                                  -------------     ------------

Property and equipment, successful 
   efforts method at cost:
     Proved properties...........................   23,317,886       13,266,674
     Unproved properties.........................    2,957,707        1,269,873
     Pipelines, gas gathering and other..........    6,901,300        3,429,985
                                                  -------------     ------------
                                                    33,176,893       17,966,532

     Less--Accumulated depreciation, depletion,
          and amortization.......................   (6,607,487)      (5,083,655)
                                                   ------------     ------------
         Property and equipment, net.............   26,569,406       12,882,877
                                                  -------------     ------------

Note receivable from directors...................      246,500          246,500
Other assets, net................................      323,189          157,809
                                                  -------------     ------------
                  Total Assets................... $ 46,713,978      $17,470,107
                                                  =============    =============

     LIABILITIES AND STOCKHOLDERS' EQUITY

Current Liabilities:
     Accounts payable and accrued liabilities:
         Trade................................... $  3,608,144     $  3,768,143
         Oil and natural gas sales...............      735,343          657,287
         Deferred revenue........................         --             45,860
         Current portion of long-term debt.......       36,598           24,697
         Accrued taxes payable...................      172,411          157,667
         Other...................................      149,771           70,019
                                                  ------------     -------------
                  Total Current Liabilities......    4,702,267        4,723,673
                                                  ------------     -------------

Long term debt ..................................         --             51,800
                                                  ------------     -------------
Deferred tax liability...........................    2,514,154               --
                                                  ------------     -------------

Stockholders' Equity:
     Partners' Capital........................... $       --       $ 12,694,634
     Common Stock, par value $.01 per share; 
         25,000,000 shares authorized 
         5,458,333 shares issued and outstanding        54,583               --
     Paid-in capital.............................   43,659,457               --
     Retained earnings (deficit).................   (4,216,483)              --
                                                  -------------    -------------
                  Total Stockholders' Equity.....   39,497,557       12,694,634
                                                  ------------     -------------
Total Liabilities and Stockholders' Equity....... $ 46,713,978     $ 17,470,107
                                                  ============     =============
                                                  
The accompanying notes are an integral part of these financial statements.
</TABLE>


                                      F-3
<PAGE>



<TABLE>

                             PETROGLYPH ENERGY, INC.

                        COMBINED STATEMENTS OF OPERATIONS

                                                 Year Ended December 31,
                                       -----------------------------------------
                                          1997           1996          1995
                                       ------------   ------------  ------------
<S>                                    <C>            <C>           <C>   

Operating Revenues:
     Oil sales........................ $ 3,734,856    $ 4,458,769   $ 3,216,901
     Natural gas sales................   1,070,195        998,920     1,015,863
     Other............................      60,847             --        36,050
                                       ------------   ------------  ------------
           Total operating revenues...   4,865,898      5,457,689     4,268,814
                                       ------------   ------------  ------------
Operating Expenses:
     Lease operating..................   1,559,885      2,368,973     2,260,303
     Production taxes.................     178,822        248,848       187,563
     Exploration costs................          --         68,818       375,649
     Depreciation, depletion, 
       and amortization...............   1,852,296      2,805,693     2,302,515
     Impairments......................          --             --       109,209
     General and administrative.......   1,299,851        902,409     1,063,708
                                       ------------   ------------  ------------
           Total operating expenses...   4,890,854      6,394,741     6,298,947
                                       ------------   ------------  ------------
Operating Loss........................     (24,956)      (937,052)   (2,030,133)
Other Income (Expenses):
     Interest income (expense), net...     114,036         40,580      (215,669)
     Gain (loss) on sales of 
       property and equipment, net....      12,440      1,383,766      (138,614)
                                       ------------   ------------  ------------
Net income (loss) before income taxes.     101,520        487,294    (2,384,416)
                                       ------------   ------------  ------------
Income Tax Expense (Benefit):
     Current..........................    (463,238)            --            --
     Deferred.........................   2,977,392             --            --
     Pro forma........................          --        190,044            --
                                       ------------   ------------  ------------
           Total Income Tax Expense ..   2,514,154        190,044            --
                                       ------------   ------------  ------------
Net Income (Loss)..................... $(2,412,634)   $   297,250   $(2,384,416)
                                       ============   ============  ============
Earnings(Loss) per Common Share, 
     Basic and Diluted................ $      (.73)   $       .11   $      (.84)
                                       ============   ============  ============
Weighted Average Common Shares 
  Outstanding (Note 4)
     Actual...........................   3,326,826             --            --
     Pro forma........................          --      2,833,333     2,833,333
                                       ============   ============  ============









                     The  accompanying  notes  are an  integral  part  of  these
financial statements.
</TABLE>
                                      F-4

<PAGE>
<TABLE>


                             PETROGLYPH ENERGY, INC.

             COMBINED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

                FOR THE YEARS ENDED DECEMBER 31, 1997, 1996, 1995


                                                                           Retained
                                      Common    Partners'       Paid In    Earnings         Total
                                       Stock     Capital        Capital    (Deficit)       Equity
                                    --------  ------------  ------------  ------------   -------------
<S>                                 <C>       <C>           <C>           <C>            <C>    

Balance, December 31, 1994......... $    --   $ 8,973,044   $        --   $(2,381,288)   $  6,591,756

Contributions......................      --     8,000,000            --            --       8,000,000


Net loss before income taxes.......      --            --            --    (2,384,416)     (2,384,416)
                                    --------  ------------  ------------  ------------   -------------

Balance, December 31, 1995.........      --    16,973,044            --    (4,765,704)     12,207,340

Contributions......................      --            --            --            --              --

Net income before income taxes.....      --            --            --       487,294         487,294
                                    --------  ------------  ------------  ------------   -------------

Balance, December 31, 1996               --    16,973,044            --    (4,278,410)     12,694,634
 
Initial public offering of common    26,250            --    29,189,307            --      29,215,557
   stock, net of offering costs....

Transfers at Conversion............  28,333   (16,973,044)   16,944,711            --              --

Deferred income taxes recorded 
     upon Conversion (Note 2)......      --            --    (2,474,561)           --      (2,474,561)

Net income.........................      --            --            --        61,927          61,927
                                    --------  ------------  ------------  ------------   -------------

Balance, December 31, 1997......... $54,583   $         0  $ 43,659,457   $(4,216,483)   $ 39,497,557
                                    ========  ============  ============  ============   =============







   The accompanying notes are an integral part of these financial statements.

</TABLE>


                                      F-5
<PAGE>

<TABLE>

                             PETROGLYPH ENERGY, INC.

                        COMBINED STATEMENTS OF CASH FLOWS


                                                                                Year Ended December 31,
                                                                   ------------------------------------------------
                                                                        1997               1996            1995
                                                                   --------------   --------------   --------------
<S>                                                                <C>              <C>              <C>    

Operating Activities:
   Net income (loss)...........................................    $  (2,412,634)   $     487,294    $ (2,384,416)
   Adjustments to reconcile net income (loss) to net cash
        used in operating activities:
           Depreciation, depletion, and amortization...........        1,852,296        2,805,693       2,302,515
           (Gain) loss on sales of property and equipment, net.          (12,440)      (1,383,766)        138,614
           Amortization of deferred revenue....................          (45,860)        (524,140)             --
           Impairments.........................................               --               --         109,209
           Exploration costs...................................               --               --         316,089
           Property abandonments...............................               --           68,818          59,560
           Amortization of financing costs.....................               --               --          66,255
           Deferred Taxes......................................        2,514,154               --              --
           Proceeds from deferred revenue......................               --          570,000              --

   Changes in assets and liabilities--
        (Increase) decrease in accounts receivable.............          142,144         (481,169)       (100,937)
        Increase in inventory..................................         (311,935)        (579,257)       (275,151)
        (Increase) decrease in prepaid expenses................         (113,945)           3,561         (82,715)
        Increase in accounts payable and accrued liabilities...           20,819        3,162,406         197,759
                                                                   --------------   --------------   -------------

           Net cash provided by operating activities...........        1,632,599        4,129,440         346,782

Investing Activities:
   Proceeds from sales of property and equipment...............          745,712        8,968,274         805,869
   Additions to oil and natural gas properties, including
        exploration costs......................................      (12,767,808)      (7,801,229)     (8,645,491)
   Additions to pipelines, gas gathering and other.............       (3,491,853)        (863,911)     (1,797,955)
   Maturity of certificates of deposit.........................               --               --           57,925
                                                                   --------------   --------------   -------------
        Net cash provided by (used in) investing activities....      (15,513,949)         303,134      (9,579,652)

Financing Activities:
   Proceeds from issuance of equity securities.................       30,515,625               --              --
   Contributions by partners...................................               --               --       8,000,000
   Proceeds from issuance of, and draws on, notes payable......       10,085,381        2,085,024       7,400,000
   Payments on note payable....................................      (10,133,545)      (5,908,527)     (5,300,000)
   Payments for organization and financing costs...............       (1,485,088)        (106,375)        (50,620)
                                                                   --------------   --------------   -------------
        Net cash provided by (used in) financing activities....       28,982,373       (3,929,878)     10,049,380
                                                                   --------------   --------------   -------------

Net increase in cash and cash equivalents......................       15,101,023          502,696         816,510

Cash and cash equivalents, beginning of period.................        1,577,632        1,074,936         258,426
                                                                   --------------   --------------   -------------
Cash and cash equivalents, end of  period......................    $  16,678,655    $   1,577,632    $  1,074,936
                                                                   ==============   ==============   =============

                                                                   
   The accompanying notes are an integral part of these financial statements.
</TABLE>


                                      F-6
<PAGE>


                             PETROGLYPH ENERGY, INC.

                     NOTES TO COMBINED FINANCIAL STATEMENTS

                        DECEMBER 31, 1997, 1996, AND 1995

1.       ORGANIZATION:

         Petroglyph   Energy,   Inc.   ("Petroglyph"   or  the   "Company")  was
incorporated  in  Delaware in April 1997 for the  purpose of  consolidating  and
continuing the activities previously conducted by Petroglyph Gas Partners,  L.P.
("PGP" or the "Partnership").  PGP is a Delaware limited partnership,  which was
organized  on April 15,  1993 to  acquire,  explore  for,  produce and sell oil,
natural gas, and related hydrocarbons. The general partner is Petroglyph Energy,
Inc., a Kansas corporation ("PEI").  Petroglyph Gas Partners II, L.P. ("PGP II")
is a Delaware  limited  partnership,  which was  organized  on April 15, 1995 to
acquire,   explore  for,   produce  and  sell  oil,   natural  gas  and  related
hydrocarbons. The general partner of PGP II is PEI (1% interest) and the limited
partner is PGP (99%  interest).  Pursuant to the terms of an Exchange  Agreement
dated August 22, 1997 (the "Exchange  Agreement"),  the Company  acquired all of
the outstanding partnership interests of the Partnership and all of the stock of
PEI in exchange for shares of Common  Stock of the Company  (the  "Conversion").
The Conversion and other  transactions  contemplated  by the Exchange  Agreement
were consummated immediately prior to the closing of the initial public offering
of the  Company's  Common  Stock  (the  "Offering").  The  Conversion  has  been
accounted for as a transfer of assets and liabilities  between  affiliates under
common  control and will result in no change in carrying  values of these assets
and liabilities.

         The accompanying  combined  financial  statements of Petroglyph include
the assets,  liabilities  and results of  operations  of PGP,  its wholly  owned
subsidiary, Petroglyph Operating Company, Inc. ("POCI"), and PGP's proportionate
share of assets,  liabilities  and  revenues and expenses of PGP II. PGP owned a
99%  interest  in PGP II as of  December  31,  1997,  1996 and  1995.  POCI is a
subchapter C corporation. POCI is the designated operator of all wells for which
PGP has acquired  operating  rights.  Accordingly,  all  producing  overhead and
supervision  fees were  charged  to the joint  accounts  by POCI.  All  material
intercompany  transactions  and balances have been eliminated in the preparation
of the accompanying combined financial statements.

         The Company's  operations  are primarily  focused in the Uinta Basin of
Utah and the Raton Basin of Colorado.

2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

MANAGEMENT'S USE OF ESTIMATES

         The  preparation of financial  statements in conformity  with generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect the  reported  amounts of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements  and the  reported  amounts  of  revenues  and  expenses  during  the
reporting period. Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

         The Company  considers all highly liquid  investments  with an original
maturity of three months or less to be cash equivalents.

SUPPLEMENTAL CASH FLOW INFORMATION

         Cash payments for interest during 1997, 1996 and 1995 totaled $325,000,
$250,000, and $266,000, respectively. The Company did not make any cash payments
for income taxes during 1997, 1996 or 1995 based on its partnership structure in
effect during those periods.


                                      F-7
<PAGE>


                             PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995


2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:--(CONTINUED)

ACCOUNTS RECEIVABLE

         Accounts  receivable  are  presented  net  of  allowance  for  doubtful
accounts, the amounts of which are immaterial as of December 31, 1997 and 1996.

INVENTORY

         Inventories  consist primarily of tubular goods and oil field materials
and supplies,  which the Company plans to utilize in its ongoing exploration and
development  activities  and  are  carried  at the  lower  of  weighted  average
historical cost or market value.

PROPERTY AND EQUIPMENT

 Oil and Natural Gas Properties

         The Company follows the successful efforts method of accounting for its
oil and natural gas properties whereby costs of productive wells,  developmental
dry holes and  productive  leases are  capitalized  and  amortized on a unit-of-
production  basis over the respective  properties'  remaining  proved  reserves.
Amortization of capitalized costs is provided on a prospect-by-prospect basis.

         Leasehold costs are capitalized when incurred. Unproved oil and natural
gas properties with significant  acquisition costs are periodically assessed and
any impairment in value is charged to exploration  costs.  The costs of unproved
properties which are not individually  significant are assessed  periodically in
the aggregate  based on historical  experience,  and any  impairment in value is
charged  to  exploration  costs.  The  costs  of  unproved  properties  that are
determined  to be  productive  are  transferred  to proved oil and  natural  gas
properties.  The Company does not capitalize  general and  administrative  costs
related to drilling and development activities.

         Exploration  costs,  including  geological  and  geophysical  expenses,
property  abandonments  and  annual  delay  rentals,  are  charged to expense as
incurred.   Exploratory   drilling  costs,   if  any,   including  the  cost  of
stratigraphic  test wells,  are initially  capitalized but charged to expense if
and when the well is determined to be unsuccessful.

         The Company adopted the provisions of Statement of Financial Accounting
Standards ("SFAS") No. 121,  "Accounting for the Impairment of Long-Lived Assets
and for Long-Lived  Assets to be Disposed Of," in connection with its formation.
SFAS No. 121 requires that proved oil and natural gas properties be assessed for
an  impairment  in  their  carrying   value   whenever   events  or  changes  in
circumstances indicate that such carrying value may not be recoverable. SFAS No.
121 requires  that this  assessment  be performed by comparing  the  anticipated
future  net  cash  flows  to the  net  carrying  value  of oil and  natural  gas
properties.  This  assessment  must  generally be  performed  on a  property-by-
property basis. The Company recognized  impairments of $109,209 in 1995. No such
impairments were required in the years ended December 31, 1997 and 1996.

Pipelines, Gas Gathering and Other

         Other  property and  equipment is primarily  comprised of a field water
distribution  system and a natural  gas  gathering  system  located in the Uinta
Basin,  field building and land,  office  equipment,  furniture and fixtures and
automobiles.  The gathering system and the field water  distribution  system are
amortized on a unit-of-production basis

                                      F-8
<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:--(CONTINUED)

over the remaining proved reserves  attributable to the properties served. These
other items are amortized on a straight-line  basis over their estimated  useful
lives which range from three to forty years.

ORGANIZATION AND FINANCING COSTS

         Organization costs are amortized on a straight-line basis over a period
not to exceed 5 years  and are  presented  net of  accumulated  amortization  of
$61,895,  $49,459 and $28,012 at December 31, 1997, 1996 and 1995, respectively.
Amortization  of $12,436,  $21,447,  and  $14,610 is  included in  depreciation,
depletion and amortization  expense in the accompanying  combined  statements of
operations for the years ended December 31, 1997,  1996 and 1995,  respectively.
Organization  costs for periods  prior to December  31, 1996 were  comprised  of
costs  related to the formation of PGP and PGP II, which were  amortized  over a
period of three years.

         Costs  related to the  issuance  of the  Company's  notes  payable  are
deferred  and  amortized on a  straight-line  basis over the life of the related
borrowing.  Such amortization  costs of $66,255 are included in interest expense
in the  accompanying  statements of operations  for the year ended  December 31,
1995.

INTEREST INCOME (EXPENSE)

         For the years  ended  December  31, 1997 and 1996,  interest  income is
presented net of interest  expense of $198,519 and $106,715,  respectively.  For
the year ended December 31, 1995,  interest expense is presented net of interest
income of $33,311.

CAPITALIZATION OF INTEREST

         Interest costs associated with  maintaining the Company's  inventory of
unproved oil and natural gas properties and significant development projects are
capitalized.  Interest  capitalized totaled $127,000,  $195,000 and $114,000 for
the years ended December 31, 1997, 1996 and 1995, respectively.

REVENUE RECOGNITION AND NATURAL GAS BALANCING

         The  Company  utilizes  the  entitlements   method  of  accounting  for
recording  revenues  whereby  revenues  are  recognized  based on the  Company's
revenue interest in the amount of oil and natural gas production.  The amount of
oil and  natural  gas sold may  differ  from the  amount  which the  Company  is
entitled based on its revenue  interests in the  properties.  The Company had no
significant natural gas balancing positions at December 31, 1997 and 1996.

INCOME TAXES

         Prior to the Conversion,  the results of operations of the Company were
included in the tax  returns of its owners.  As a result,  tax  strategies  were
implemented that are not necessarily  reflective of strategies the Company would
have  implemented.  In addition,  the tax net operating  losses generated by the
Company during the period from its inception to date of the Conversion  will not
be available to the Company to offset future taxable income as such
benefit accrued to the owners.

     In  conjunction  with the  Conversion,  the Company  adopted  SFAS No. 109,
"Accounting  for Income  Taxes",  which provides for  determining  and recording
deferred income tax assets or liabilities based on temporary differences between
the  financial  statement  carrying  amounts  and the tax  bases of  assets  and
liabilities using enacted tax rates. SFAS

                                      F-9
<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995


2.       SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:--(CONTINUED)

     No. 109 requires  that the net deferred tax  liabilities  of the Company on
the date of the  Conversion  be recognized as a component of income tax expense.
The  Company  recognized  a one-time  charge of  approximately  $2.5  million in
deferred tax liabilities and income tax expense on the date of the Conversion.

         Upon the Conversion,  the Company became taxable as a corporation.  Pro
forma income tax information for the year ended December 31, 1996,  presented in
the accompanying  combined  statements of operations and in Note 6, reflects the
income tax expense (benefit), net income (loss) and net income (loss) per common
share as if all  Partnership  income  for 1996 had  been  subject  to  corporate
federal  income tax,  exclusive of the effects of recording  the  Company's  net
deferred tax liabilities upon the Conversion.

DERIVATIVES

         The  Company  uses  derivatives  on a  limited  basis to hedge  against
interest  rate and  product  prices  risks,  as opposed to their use for trading
purposes.  The Company's  policy is to ensure that a correlation  exists between
the financial instruments and the Company's pricing in its sales contracts prior
to entering into such contracts. Gains and losses on commodity futures contracts
and other price risk  management  instruments  are recognized in oil and natural
gas  revenues  when  the  hedged  transaction  occurs.  Cash  flows  related  to
derivative transactions are included in operating activities.

STOCK BASED COMPENSATION

         Upon the  Conversion,  the Company adopted the provisions of Accounting
Principles Board Opinion No. 25, "Accounting for Stock Issued to Employees".  In
accordance with APB No. 25, no  compensation  will be recorded for stock options
or other stock-based  awards that are granted with an exercise price equal to or
above the common  stock price on the date of the grant.  As of December 31, 1997
and December 31,  1996,  there is no impact from  adoption of APB No. 25 or SFAS
No.  123 as no stock  options,  warrants  or grants had been  exercised  at such
dates. The Company will, however, adopt the disclosure  requirements of SFAS No.
123, "Accounting for Stock-Based Compensation" which will require the Company to
present pro forma  disclosures  of net income and  earnings per share as if SFAS
No. 123 had been adopted.

RECLASSIFICATIONS

         Certain  reclassifications  have been made to prior  year  balances  to
conform to current year presentation.

3.       ACQUISITIONS AND DISPOSITIONS:

         In February 1994, the Company  purchased a 50% working  interest in the
existing Antelope Creek and Duchesne fields in the Uinta Basin for $4.5 million.
In September 1995, the Company acquired for total  consideration of $5.6 million
the remaining 50% interest of its joint venture partners,  Inland Resources,  in
the Utah properties.  The  consideration  consisted of $3.1 million in cash plus
assumption of Inland's outstanding debt of $2.5 million,  which was specifically
collateralized by Inland's investment in the Utah properties.  The assumption of
outstanding debt is not reflected on the accompanying statement of cash flows as
it is a noncash transaction.
These acquisitions were accounted for using the purchase method of accounting.


                                      F-10

<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

3.       ACQUISITIONS AND DISPOSITIONS:--(CONTINUED)

         Effective  September 1, 1994,  the Company  acquired  Southwest Oil and
Land's  interest in the  Victoria  properties  in Victoria  and DeWitt  counties
located in Texas for approximately $1.6 million.

         In June 1996,  the Company sold a 50% working  interest in its Antelope
Creek field  properties  to an  industry  partner.  The  Company  retained a 50%
working interest and continues to serve as operator of the property. In exchange
for the sale of the interest in the Antelope Creek field,  the Company  received
$7.5  million,  as  adjusted,  in  cash  and  the  parties  entered  into a Unit
Participation  Agreement for development of the Antelope Creek field.  Under the
terms  of  this  agreement,   the  Company  received  $5.3  million  in  carried
development  costs for approximately 50 wells over a 12 month period which ended
on June 30,  1997.  The Company  recognized  a pre-tax gain on this sale of $1.3
million.  This Unit Participation  Agreement is structured such that the Company
paid 25% of the  development  costs of the Antelope Creek field from the date of
the agreement until  approximately  $21 million in total  development costs have
been incurred.  By December 31, 1997, all of this carried  development  cost had
been expended. In addition, under the terms of the Unit Participation Agreement,
the Company's working interest in the Antelope Creek field will increase to 58%,
and its partner's  working  interest will be reduced to 42%, at such time as the
Company's partner in the Antelope Creek field achieves payout, as defined in the
Unit Participation Agreement.

         As an additional part of the purchase and sale  agreement,  the Company
sold a 50% net  profits  interest  (NPI) in its  remaining  50%  interest in the
Antelope Creek field commencing on the date of the agreement.  The NPI continued
in effect until 67,389 barrels of equivalent  production  related to the NPI was
produced from the Antelope  Creek field.  The NPI entitled the holder to receive
the net profits,  defined in the purchase  and sale  agreement as revenues  less
direct  operating  expenses,  from the  sale of the  barrels  of oil  equivalent
production  relating to the NPI. A value of $570,000 was assigned to the sale of
the NPI and recorded as deferred  revenue.  This amount was determined  based on
the  projected  net profits that would have been  received  from the sale of the
barrels of oil equivalent production related to the NPI. As these barrels of oil
equivalent  production  were  produced  and NPI proceeds  were  disbursed to the
holder of the NPI, an equal amount of the deferred revenue was recognized as oil
and natural gas  revenue.  Through  December 31,  1996,  the Company  recognized
$524,140 of revenue  related to this NPI. The remaining  $45,860 was  recognized
during the year ended December 31, 1997.

         The following  unaudited  Pro Forma  Condensed  Combined  Statements of
Operations  for the years  ended  December  31, 1996 and 1995 give effect to the
Antelope  Creek  disposition  as if the sale had been  consummated at January 1,
1996 and 1995. A pro forma  combined  balance  sheet at December 31, 1996 is not
necessary as the historical combined balance sheet at December 31, 1996 includes
the effect of the  disposition.  The  unaudited  pro forma data is presented for
illustrative  purposes only and is not  necessarily  indicative of the operating
results that would have occurred had the  transaction  been  consummated  at the
dates  indicated,  nor are  they  necessarily  indicative  of  future  operating
results.

                                      F-11
<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

3.       ACQUISITIONS AND DISPOSITIONS:--(CONTINUED)

              Pro Forma Condensed Combined Statements of Operations
                                   (unaudited)
<TABLE>


                                                       Year Ended December 31,
                                                   -----------------------------
                                                      1996                 1995
                                                   --------------  -------------
<S>                                                <C>             <C>    

Oil and natural gas revenues                       $   4,400,689   $  3,678,764
Other revenues                                               --          36,050
                                                   --------------  -------------
         Total Revenues                                4,400,689      3,714,814
Lease operating expenses                               1,953,973      2,085,303
Production taxes                                         204,848        143,563
Exploration costs                                         68,818        335,649
Depreciation, depletion, and amortization              2,358,693      1,920,515
Impairments                                                  --         109,209
General and administrative expenses                      902,409      1,063,708
                                                   --------------  -------------
         Total Expenses                                5,488,741      5,657,947
Interest income (expense), net                           147,580       (147,669)
Gain (loss) on sale of assets                             69,766       (138,614)
                                                   --------------  -------------
Net loss                                           $    (870,706)  $ (2,229,416)
                                                   ==============  =============
</TABLE>

         In July 1997,  the Company  acquired  56,000 net  mineral  acres in the
Raton Basin in Colorado for  approximately  $700,000.  This  acquisition  had an
effective  date of May 15,  1997.  An  additional  9,000 net mineral  acres were
acquired by December 31, 1997 from various  parties for a total of 63,000 acres.
In addition, the Company also acquired,  simultaneously, an 80% interest in a 25
mile pipeline  strategically  located across the Company's  acreage positions in
the Raton Basin for total consideration of approximately  $320,000. The Company,
together  with an  industry  partner,  formed  a  partnership  to  operate  this
pipeline.  Under the terms of the purchase and sale agreement,  the Company paid
$75,000 at closing,  $75,000 on December  31,  1997 and is  obligated  to pay an
additional $35,000 by July 1999. Additionally, the Company assumed an obligation
for delinquent  property  taxes of  approximately  $135,000,  which were paid in
November of 1997.

4.       EQUITY

         INITIAL PUBLIC OFFERING

         On October 24, 1997,  Petroglyph  completed its initial public offering
(the  "Offering")  of  2,500,000  shares of common  stock at $12.50  per  share,
resulting  in net  proceeds  to the  Company  of  approximately  $29.1  million.
Approximately  $10.0  million of the net  proceeds  were used to  eliminate  all
outstanding  amounts under the Company's Credit  Agreement,  with the balance of
the proceeds  expected to be utilized to develop  production and reserves in the
Company's core Uinta Basin and Raton Basin development  properties and for other
working capital needs.

         On November 24, 1997, the Company's underwriters exercised a portion of
an over-allotment  option granted in connection with the Offering,  resulting in
the  issuance  of an  additional  125,000  shares of common  stock at $12.50 per
share, with net proceeds to the Company of approximately $1.5 million.

                                      F-12

<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

4.       EQUITY--(CONTINUED)

         EARNINGS PER SHARE INFORMATION

         Effective  December 31, 1997,  the Company  adopted the  provisions  of
Statement of Financial  Accounting  Standards  ("SFAS") No. 128,  "Earnings  Per
Share",  which  prescribes  standards for computing and presenting  earnings per
share ("EPS") and supersedes APB Opinion 15, "Earnings Per Share."

         Pro forma  weighted  average  shares  outstanding  for the years  ended
December 31, 1996 and 1995 are  presented  as if the  Conversion  had  occurred,
resulting in common  stock  outstanding  as of the  beginning of each of the two
respective  years.  The  computation of basic and diluted EPS were identical for
the years ended December 31, 1997, 1996 and 1995 due to the following reasons:

          Options to purchase 337,000 shares of common stock at $12.50 per share
         were  outstanding  since November 1, 1997, but were not included in the
         computation  of diluted  EPS because the  options'  exercise  price was
         greater  than the  average  market  price  of the  common  shares.  The
         options,  which expire on November 1, 2007,  were still  outstanding at
         December 31, 1997.

          Warrants  to  purchase  up to 6,496  shares of common  stock  were not
         included in the computation of diluted EPS as they are  antidilutive as
         a result of the  Company's  net loss for the year  ended  December  31,
         1997.  The  warrants,  which expire on September  15, 2007,  were still
         outstanding at December 31, 1997.

          As the Company  completed  the Offering in 1997,  there were no equity
         securities,  nor any potentially dilutive equity securities outstanding
         at either December 31, 1996 or 1995.

5.       TRANSACTIONS WITH AFFILIATES:

         The  Company  had notes  receivable  from  certain  executive  officers
aggregating  $246,500  at December  31,  1997,  1996 and 1995.  These notes bear
interest at a rate of 9% and have no set maturity date.

         The Company leases its office building from an affiliate.  Rentals paid
to the  affiliate for such leases  during 1997,  1996 and 1995 totaled  $34,800,
$34,800 and  $39,200,  respectively.  These  rentals are included in general and
administrative expense in the accompanying financial statements.

         In August 1997,  the Company and NGP entered into a financial  advisory
services agreement whereby NGP has agreed to provide financial advisory services
to the  Company  for a  quarterly  fee of  $13,750.  In  addition,  NGP  will be
reimbursed for its out of pocket expenses  incurred in performing such services.
The  agreement is for a one year term and can be terminated by NGP at the end of
any fiscal quarter. Under the agreement, NGP will assist the Company in managing
its public and private  financing  activities,  its public  financial  reporting
obligations,  its budgeting and planning  processes,  and its investor relations
program,  as well as provide ongoing strategic advice.  NGP will not receive any
other  transaction-related  compensation for its advisory  assistance.  Advisory
fees paid to NGP during 1997 totaled $10,163.

         For the years ended  December 31, 1997 and 1996, the Company paid legal
fees of $139,384 and $109,000,  respectively,  to the law firm of Morris, Laing,
Evans,  Brock & Kennedy,  Chartered,  where  A.J.  Schwartz,  a director  of the
Company, is a partner.

                                      F-13

<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

6.       LONG-TERM DEBT:

         The Company  negotiated a $10,000,000 loan facility with Texas Commerce
Bank  National  Association  ("TCB") of Dallas,  Texas,  as agent for a group of
financial institutions,  in May 1995. The loan facility is collateralized by the
Company's oil and natural gas  properties  located in Utah and contains  certain
financial  covenants  with which the Company was in  compliance  at December 31,
1997 and  1996.  The loan  facility  is a  combination  credit  facility  with a
revolving  credit  agreement,  which  expired on May 25, 1997, at which time all
balances  outstanding  under the revolving credit agreement were to convert to a
term loan,  expiring  on  October  1, 1999.  The  revolving  loan  facility  was
redetermined  at $7.5  million on July 2, 1997.  This  effectively  allowed  the
Company to continue to borrow on the facility in place until September 15, 1997,
when the Company amended the Original Agreement and entered into the Amended and
Restated Loan Agreement with The Chase Manhattan Bank ("Chase") (as amended, the
"Credit Agreement"). As part of the Credit Agreement, the agent was changed from
TCB to Chase;  however,  the group of  lenders  remains  unchanged.  The  Credit
Agreement  includes a $20.0 million  combination credit facility with a two-year
revolving credit facility with an original  borrowing base of $7.5 million to be
redetermined  semi-annually  ("Tranche A"), which expires on September 15, 1999,
at which time all balances  outstanding  under  Tranche A will convert to a term
loan expiring on September 15, 2002. Additionally, the Credit Agreement contains
a separate revolving facility of $2.5 million ("Tranche B"), which was to expire
on March 15,  1999,  at which time all  balances  outstanding  would have become
immediately payable. The Company had an outstanding  obligation under the Credit
Agreement of $10.0 million at October 24, 1997.  The Company  utilized a portion
of the net proceeds from the Offering to eliminate all outstanding amounts under
the Credit  Agreement  on October 24, 1997.  With the  repayment of the Trance B
indebtedness,  the $2.5 million under that portion of the Credit Agreement is no
longer  available  to the  Company.  Interest on  borrowings  outstanding  under
Tranche A is calculated,  at the Company's  option, at either Chase's prime rate
or the  London  interbank  offer  rate plus a margin  determined  by the  amount
outstanding under the tranche. There are no outstanding amounts under the Credit
Agreement at December 31, 1997.

         In July 1996,  the Company used proceeds  received from the sale of oil
and gas properties to pay in full the outstanding balance of $5.9 million on the
revolver. The revolver was still open at December 31, 1996, although there is no
outstanding  balance due as of that date. The  availability to the Company under
this  revolver  at  December  31,  1996 was $7.5  million.  The  Company  pays a
commitment  fee of  three-eighths  of 1% on the unused  portion of the available
borrowings under the Revolver. There were no outstanding amounts under this line
of credit at December 31, 1996.

         In September  1996,  the Company  entered into a term loan with a local
lender  covering  four  vehicles.  The  principal  balance  was $85,000 and bore
interest at an annual rate of 7.5%. The loan was to mature on September 16, 1999
and was secured by the four  vehicles.  At December  31, 1996,  the  outstanding
balance was $76,497,  $51,800 of which is  presented  as  long-term  debt in the
accompanying  Combined Statement of Assets,  Liabilities and Owners' Equity. The
loan was paid in full in December 1997.

7.       INCOME TAXES:

         Upon the completion of the Offering in November 1997, all income of the
Company became taxable as a corporation.  Pro forma  information in the 1996 and
1995  combined   statements  of  operations  reflects  the  income  tax  expense
(benefit),  net income (loss) and net income (loss) per common  share/unit as if
all prior  Partnership  income had been subject to corporate federal income tax,
exclusive of the effects of recording the Company's net deferred tax liabilities
upon the  conclusion of the Offering.  This pro forma  information  is presented
below for comparative purposes only.

                                      F-14

<PAGE>

                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

7.       INCOME TAXES:--(CONTINUED)

         The effective  income tax rate for the Company was  different  than the
statutory federal income tax rate for the periods shown below:

                                               Year Ended December 31,
                                 -----------------------------------------------
                                       1997              1996             1995
                                 ---------------   ---------------  ------------
                                                      (pro forma)   (pro froma)
Income tax expense (benefit)
     at the federal           
     statutory rate of 35%....   $    35,532           $  170,552   $  (834,546)
State income tax  expense 
     (benefit)................         4,061               19,492       (95,377)
Deferred tax liabilities 
     recorded upon the 
     Offering.................     2,474,561                   --            --
Net operating loss  
     utilized by partners.....           --                    --       929,923
                                 ------------          -----------  ------------
                                 $ 2,514,154           $  190,044   $        --
                                 ===========           ===========  ============

                                 
Components of income tax expense (benefit) are as follows:

                                            Year Ended December 31,
                                 -----------------------------------------------
                                    1997              1996             1995
                                 ---------------  ----------------  ------------
                                                   (proforma)       (pro forma)
Current.................         $     (463,238)  $      (222,169)           --
Deferred................              2,977,392           412,213            --
                                 ---------------  ----------------  ------------
               Total....         $    2,514,154   $       190,044            --
                                 ===============  ================  ============


         Deferred  tax  assets and  liabilities  are the  results  of  temporary
differences  between the financial  statement  carrying  values and tax bases of
assets and liabilities. The Company's net deferred tax liability positions as of
December 31, 1997 and 1996, are summarized below:

                                                        December 31,
                                             ------------------------------
                                                     1997          1996
                                             --------------  --------------
                                                                (pro forma)
Deferred Tax Assets:
Net operating loss carryforwards............ $     496,232              --
                                             --------------  --------------
   Total Deferred Tax Assets................       496,232              --
                                             --------------  --------------

Deferred Tax Liabilities:
Inventory and other.........................       (32,994)         (53,820)
Property and equipment......................    (2,977,392)      (1,267,728)
                                             --------------  ---------------
   Total Deferred Tax Liabilities...........    (3,010,386)      (1,321,548)
                                             --------------  --------------

   Total Net Deferred Tax Liability......... $  (2,514,154)  $   (1,321,548)
                                             ==============  ===============


         The net deferred tax liability as of December 31, 1997 is primarily the
amount that the Company was  required to  recognize as income tax expense on the
date of the Conversion discussed in Note 2.


                                      F-15
<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

8.       DERIVATIVES, SALES CONTRACTS AND SIGNIFICANT CUSTOMERS:

DERIVATIVES AND SALES CONTRACTS

         The  Company  accounts  for  forward  sales   transactions  as  hedging
activities and, accordingly, records all gains and losses in oil and natural gas
revenues in the period the hedged production is sold. Included in oil revenue is
a net loss of $132,200  in 1997 and a net loss of $128,400 in 1996.  Included in
natural gas revenues in 1997 is a net loss of $46,000.  Losses  incurred  during
1995 were not significant.

         In August 1994, the Company  entered into a financial swap  arrangement
covering  the sale of 549,000  barrels of oil  production  from  January 1996 to
December  1999, at a floor price of $17.00 per Bbl and a ceiling price of $20.75
per Bbl. This agreement was terminated in October of 1995, for which the Company
received a premium of $170,000.  This premium is included in oil revenue for the
year  ended  December  31,  1995  in  the  accompanying  combined  statement  of
operations.

         In  January  1995,  the  Company   entered  into  an  additional   swap
arrangement  covering  the sale of 4,000  Bbls per month from  February  1995 to
January  1996,  at a floor price of $17.00 per Bbl and a ceiling price of $19.00
per Bbl. This agreement was  terminated in October 1995. In September  1995, the
Company  assumed  the  obligations  of a former  joint  interest  owner  under a
financial swap arrangement.  This agreement covers the sale of 549,000 Bbls from
January  1996 to December  1999 at a floor price of $17.00 per Bbl and a ceiling
price of $20.75 per Bbl. At December 31, 1997, this contract was outstanding and
calls for the remaining  sale of 309,000  barrels of oil over the next two years
as follows:

                  YEAR                                         BBLS
                  ----                                         ----
                  1998....................................  150,000
                  1999....................................  159,000
                                                           --------
                      Total...............................  309,000
                                                           ========

         In June 1994,  the  Company  entered  into a  contract  to sell its oil
production  from certain  leases of its Utah  properties  to Purchaser  "A". The
price under this  contract is agreed  upon on a monthly  basis and is  generally
based on this  purchaser's  posted price for yellow or black wax production,  as
applicable.  This contract  will  continue in effect until  terminated by either
party upon giving proper notice.  During the years ended December 31, 1997, 1996
and 1995 the  volumes  sold under this  contract  totaled  74,499,  60,633,  and
101,115 Bbls,  respectively,  at an average sales price per Bbl for each year of
$14.80, $19.33, and $17.09.

         In January 1996, the Company  entered into a contract to sell black wax
production  from its Utah leases to Purchaser "B". The price under this contract
is based on the monthly  average of the NYMEX price for West Texas  Intermediate
("WTI")  crude oil,  less $.50 per Bbl,  adjusted  for the pricing  differential
related to the gravity  difference  between Purchaser B's Utah black wax posting
and WTI, less $2.50 per Bbl to cover gathering  costs and quality  differential.
During the year ended  December  31,  1996,  the Company sold 59,048 Bbls of oil
under this  contract at an average  price of $19.69 per Bbl.  This  contract was
canceled effective January 1, 1997.

         In July 1997, the Company  entered into a modification of its crude oil
sales  contract  to sell its black wax crude oil  production  from the  Antelope
Creek field to Purchaser "C" at a price equal to posting,  less $2.00 per Bbl to
cover handling and gathering costs. This contract  supersedes the contract which
the Company had with this purchaser  from February 1994 through June 1997.  This
contract will continue in effect until terminated by either party upon giving


                                      F-16
<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

8.       DERIVATIVES, SALES CONTRACTS, AND SIGNIFICANT CUSTOMERS:--(CONTINUED)

proper  notice.  For the year ended  December 31, 1997,  the Company sold 70,204
Bbls under this contract at an average price of $16.58 per Bbl.

         In June 1997,  the Company  entered  into a crude oil  contract to sell
black wax production from certain of its oil tank batteries in Antelope Creek to
Purchaser  "D". This contract is effective  until May 31, 1998 and calls for the
Company to receive a per Bbl price  equal to the  current  month  NYMEX  closing
price for sweet crude,  averaged over the month in which the crude is sold, less
an agreed upon fixed adjustment. This contract replaces a contract the

Company had with  Purchaser "D" for the month of April 1997.  Volumes sold under
this contract  totaled 73 MBbls at an average price of $14.50 for the year ended
December 31, 1997.

         In addition to the sales contracts discussed above, Purchaser "C" has a
call on all of the Company's  share of oil  production  from the Antelope  Creek
field, which has priority over all other sales contracts. Under the terms of the
Oil Production Call Agreement (the "Call Agreement"),  which the Company assumed
in connection with its acquisition of its initial interest in the Antelope Creek
field,  this  purchaser has the option to purchase all or any portion of the oil
produced  from the  Antelope  Creek  field at the current  market  price for the
gravity  and  type of oil  produced  and  delivered  by the  Company.  The  Call
Agreement was assumed by the Company on the date it acquired its interest in the
Antelope  Creek field and has no  expiration  date.  In the event  Purchaser "C"
exercises  the call option,  the Company  will not be penalized  under its other
sales contracts for failure to deliver volumes thereunder.

SIGNIFICANT CUSTOMERS

         The Company's  revenues are derived  principally from  uncollateralized
sales to customers in the oil and gas industry. The concentration of credit risk
in a single  industry  affects  the  Company's  overall  exposure to credit risk
because customers may be significantly affected by changes in economic and other
conditions.  In addition, the Company sells a significant portion of its oil and
natural gas revenue each year to a few customers.  Oil sales to three purchasers
in 1997 were  approximately 24%, 23% and 22% of total 1997 oil and gas revenues.
Natural gas sales to one purchaser in 1997 were  approximately  18% of total oil
and  natural  gas  revenues.   Oil  sales  to  three  purchasers  in  1996  were
approximately 26%, 26% and 12% of total 1996 oil and gas revenues.  Oil sales to
one purchaser in 1995 were  approximately  43% of total 1995 oil and natural gas
revenues.

9.       FAIR VALUE OF FINANCIAL INSTRUMENTS:

         Because of their short-term  maturity,  the fair value of cash and cash
equivalents,  certificates of deposit,  accounts receivable and accounts payable
approximate  their carrying values at December 31, 1997 and 1996. The fair value
of the Company's bank  borrowings  approximate  their carrying value because the
borrowings  bear  interest  at  market  rates.  The  Company  does  not have any
investments  in debt or equity  securities as of December 31, 1997 or 1996.  The
fair value of the Company's outstanding oil price swap arrangement, described in
the  preceding  note,  has an  estimated  fair value of $182,000 and $170,000 at
December 31, 1997 and 1996,  respectively.  These  estimates are based on quoted
market values.

                                      F-17

<PAGE>

                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995
10.      STOCK INCENTIVE PLAN:

DESCRIPTION OF PLAN

         The Board of Directors and the stockholders of the Company approved the
adoption  of the  Company's  1997  Incentive  Plan (the "1997  Incentive  Plan")
effective  as of the  completion  of  the  Offering.  The  purpose  of the  1997
Incentive Plan is to reward  selected  officers and key employees of the Company
and  others  who have  been or may be in a  position  to  benefit  the  Company,
compensate  them for  making  significant  contributions  to the  success of the
Company and provide them with proprietary interest in the growth and performance
of the Company.

         Participants   in  the  1997   Incentive   Plan  are  selected  by  the
Compensation  Committee  of the Board of  Directors  from  among  those who hold
positions  of  responsibility  and whose  performance,  in the  judgment  of the
Compensation  Committee,  can have a  significant  effect on the  success of the
Company. An aggregate of 375,000 shares of Common Stock have been authorized and
reserved for issuance  pursuant to the 1997  Incentive  Plan. As of December 31,
1997,  options have been granted to the  participants  under the 1997  Incentive
Plan to purchase a total of 337,000 shares of Common Stock to participants at an
exercise  price per share equal to $12.50 per share.  One-third of these options
will vest each  year  commencing  on  November  1,  1998.  No  options  had been
exercised as of December 31, 1997.

         Pursuant to the 1997 Incentive Plan,  participants  will be eligible to
receive awards consisting of (i) stock options,  (ii) stock appreciation rights,
(iii) stock,  (iv)  restricted  stock,  (v) cash, or (vi) any combination of the
foregoing.  Stock  options  may be either  incentive  stock  options  within the
meaning of Section 422 of the  Internal  Revenue  Code of 1986,  as amended,  or
nonqualified stock options.

         Warrants  to purchase up to 6,496  shares of common  stock,  at a price
equal  to par  value,  were  granted  to Chase  under  the  terms of the  Credit
Agreement.  The  warrants,  which  expire on  September  15,  2007,  were  still
outstanding at December 31, 1997.

            PRO FORMA EFFECT OF RECORDING STOCK-BASE COMPENSATION AT
                        ESTIMATED FAIR VALUE (UNAUDITED)

         The following  table  presents pro forma loss available to common stock
and loss per common  share for 1997,  as if  stock-based  compensation  had been
recorded  at the  estimated  fair value of stock  awards at the grant  date,  as
prescribed by SFAS 123, Accounting for Stock-Based Compensation (Note 2):


                                                            Year Ended
                                                         December 31, 1997
                                                         -----------------

    Loss available to common stock
             As reported                                       $(2,412,634)
             Pro forma                                         $(2,492,007)

    Loss per common share
             As reported, basic and diluted                    $      (.73)
             Pro forma, basic and diluted                      $      (.75)

     There is no impact of  adoption of APB No. 25 or SFAS No. 123 for the years
ended  December 31, 1996 or 1995,  as no stock  options,  warrants or grants had
been issued at such dates.

                                      F-18

<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

11.      COMMITMENTS AND CONTINGENCIES:

LEASES

         The  Company  leases  offices  and  office  equipment  in  its  primary
locations under non-cancelable  operating leases. As of December 31, 1997, total
minimum  future  lease  payments  for all  non-cancelable  lease  agreements  is
$39,261.

         Amounts  incurred  by the Company  under  operating  leases  (including
renewable monthly leases) were $53,383,  $41,548, and $50,543, in 1997, 1996 and
1995, respectively.

LITIGATION

         The Company and its subsidiary  are involved in certain  litigation and
certain  governmental  proceedings  arising  in the normal  course of  business.
Company management and legal counsel do not believe that ultimate  resolution of
these claims will have a material effect on the Company's  financial position or
results of operations.

OTHER COMMITMENTS

         In  December  1996,  the  Company  entered  into an  agreement  with an
industry  partner whereby the industry  partner would pay for the costs of a 3-D
seismic survey on the Company's  leasehold  interests in the Helen Gohlke field,
located in Victoria  and DeWitt  Counties of South  Texas.  In exchange for such
costs,  the  industry  partner  has  the  right  to earn a 50%  interest  in the
leasehold  rights of the Company in the Helen Gohlke field. The industry partner
is required to pay 50% of the costs to drill and  complete any wells in the area
covered by the seismic survey, and, in exchange, will earn a 50% interest in the
well and in certain acreage surrounding the well. The amount of such surrounding
acreage in which the industry  partner will earn an interest is to be determined
based upon the depth of the well drilled.

ENVIRONMENTAL MATTERS

         The Company's  operations  and  properties are subject to extensive and
changing federal, state and local laws and regulations relating to environmental
protection,    including   the   generation,    storage,   handling,   emission,
transportation and discharge of materials into the environment,  and relating to
safety and health. The recent trend in environmental  legislation and regulating
generally is toward  stricter  standards,  and this trend will likely  continue.
These laws and  regulations  may  require the  acquisition  of a permit or other
authorization  before  construction of drilling  commences and for certain other
activities;  limit or prohibit  construction,  drilling and other  activities on
certain lands lying within  wilderness  and other  protected  areas;  and impose
substantial  liabilities for pollution resulting from the Company's  operations.
The permits  required  for various of the  Company's  operations  are subject to
revocation,  modification  and  renewal  by  issuing  authorities.  Governmental
authorities  have the power to enforce  compliance with their  regulations,  and
violations  are  subject  to fines or  injunction,  or both.  In the  opinion of
management,  the Company is in substantial  compliance  with current  applicable
environmental laws and regulations,  and the Company has no material commitments
for capital  expenditures  to comply with existing  environmental  requirements.
Nevertheless,  changes in  existing  environmental  laws and  regulations  or in
interpretations  thereof could have a significant impact on the Company, as well
as the oil and natural gas industry in general.

                                      F-19

<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

12. SUPPLEMENTAL FINANCIAL INFORMATION OIL AND NATURAL GAS PRODUCING ACTIVITIES:

COSTS INCURRED RELATED TO OIL AND NATURAL GAS PRODUCING ACTIVITIES

         The following table  summarizes  costs incurred  whether such costs are
capitalized or expensed for financial reporting purposes (in thousands):


                                              Year Ended December 31,
                              --------------------------------------------------
                                    1997             1996              1995
                              ---------------  ---------------   ---------------
Acquisition
     Unproved Properties.     $     1,721,636  $       490,487   $         8,206
     Proved Properties...             147,387               --         4,718,201
Development..............          10,003,468        6,983,715         3,448,972
Exploration..............                --                 --           316,089
Improved recovery costs..             895,317          327,027           154,023
                              ---------------  ---------------   ---------------
     Total...............     $ 12,767,808     $     7,801,229   $     8,645,491
                              ===============  ===============   ===============

PROVED RESERVES

         Independent petroleum engineers have estimated the Company's proved oil
and natural gas reserves as of December  31,  1997,  all of which are located in
the United States. Prior period reserves were estimated by the Company's reserve
engineer.  Proved  reserves  are the  estimated  quantities  that  geologic  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  are  the  quantities  expected  to  be
recovered through existing wells with existing  equipment and operating methods.
Due to the inherent uncertainties and the limited nature of reservoir data, such
estimates are subject to change as additional information becomes available. The
reserves  actually  recovered and the timing of production of these reserves may
be  substantially  different  from  the  original  estimate.   Revisions  result
primarily from new information obtained from development drilling and production
history and from changes in economic factors.

STANDARDIZED MEASURE

         The   standardized   measure  of  discounted   future  net  cash  flows
("standardized  measure")  and  changes  in such cash flows are  prepared  using
assumptions   required  by  the  Financial   Accounting  Standards  Board.  Such
assumptions  include  the use of  year-end  prices for oil and  natural  gas and
year-end costs for estimated future  development and production  expenditures to
produce year-end estimated proved reserves. Discounted future net cash flows are
calculated  using a 10% rate.  Estimated  future income taxes are  calculated by
applying year-end statutory rates to future pre-tax net cash flows, less the tax
basis of related assets and applicable tax credits.

         The standardized  measure does not represent  management's  estimate of
the  Company's  future cash flows or the value of the proved oil and natural gas
reserves. Probable and possible reserves, which may become proved in the future,
are  excluded  from  the  calculations.  Furthermore,  year-end  prices  used to
determine the  standardized  measure of discounted  cash flows are influenced by
seasonal  demand and other  factors  and may not be the most  representative  in
estimating future revenues or reserve data.

                                      F-20

<PAGE>

                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

12.      SUPPLEMENTAL FINANCIAL INFORMATION OIL AND NATURAL GAS 
         PRODUCING ACTIVITIES:--(CONTINUED)
<TABLE>


                                                         Oil       Natural Gas
                                                       (Bbls)        (Mcf)
                                                  -------------- ---------------
<S>                                               <C>            <C>    

Proved Reserves (Unaudited):
December 31, 1994................................     1,204,969       7,307,359
         Revisions...............................      (295,013)       (698,765)
         Extensions, additions and discoveries...       291,097         181,797
         Production..............................      (182,704)       (659,202)
         Purchases of reserves...................       628,789         694,187
         Sales in place..........................       (86,046)       (166,216)
                                                  -------------- ---------------

December 31, 1995................................     1,561,092       6,659,160
         Revisions...............................      (801,535)     (3,146,699)
         Extensions, additions and discoveries...     6,440,869      18,448,489
         Production..............................      (262,910)       (553,770)
         Purchases of reserves...................            --              --
         Sales in place..........................      (810,380)     (2,594,717)
                                                 --------------- ---------------

December 31, 1996................................     6,127,136      18,812,463
         Revisions...............................       558,350      (2,895,611)
         Extensions, additions and discoveries...     3,168,390       5,939,453
         Production..............................      (251,631)       (537,466)
         Purchases of reserves...................        10,245         269,323
         Sales in place..........................      (156,675)       (892,712)
                                                 --------------- ---------------

December 31, 1997................................     9,455,815      20,695,450
                                                 =============== ===============

Proved Developed Reserves:
December 31,1994.................................     1,204,969       7,307,359
                                                 =============== ===============
December 31, 1995................................     1,561,092       6,659,160
                                                 =============== ===============
December 31, 1996................................       865,018       3,010,401
                                                 =============== ===============
December 31, 1997................................     4,742,028      10,839,164
                                                 =============== ===============
</TABLE>

                                      F-21


<PAGE>
                            PETROGLYPH ENERGY, INC.

               NOTES TO COMBINED FINANCIAL STATEMENTS--(CONTINUED)

                        DECEMBER 31, 1997, 1996, AND 1995

12.      SUPPLEMENTAL FINANCIAL INFORMATION OIL AND NATURAL GAS PRODUCING 
         ACTIVITIES:--(CONTINUED)


   Standardized Measure of Discounted Future Net Cash Flows Relating to Proved
                              Reserves (Unaudited)
<TABLE>

                                                   December 31,
                            ------------------------------------------------
                                  1997            1996             1995
                            --------------  --------------  ----------------
<S>                         <C>             <C>             <C>    

Future cash inflows......   $ 169,302,079   $ 184,248,490   $    40,419,081
Future costs:
         Production......     (50,913,842)    (43,993,010)      (17,987,575)
         Development.....     (19,151,264)    (16,455,901)               --
                            --------------  --------------     -------------
Future net cash flows 
     before income tax...      99,236,973     123,799,579        22,431,506
Future income tax........     (22,247,206)    (32,657,687)       (3,032,875)
                            --------------  --------------   ---------------
Future net cash flows....      76,989,767      91,141,892        19,398,631
10% annual discount......     (42,836,688)    (43,117,804)       (6,027,926)
                            --------------  --------------   ---------------
Standardized Measure.....   $  34,153,079   $  48,024,088   $    13,370,705
                            ==============  ==============   ===============

</TABLE>

Changes in Standardized Measure of Discounted Future Net Cash Flows (Unaudited)
<TABLE>

                                        
                                                   December 31,
                          ------------------------------------------------------
                                 1997               1996                1995
                          --------------      --------------      --------------
<S>                       <C>                 <C>                 <C>

Standardized Measure, 
  Beginning of Period..... $ 48,024,088       $  13,370,705       $  10,360,642
Revisions:
  Prices and costs........  (26,476,631)          4,839,954            (525,763)
  Quantity estimates......      380,840           6,000,942            (989,701)
  Accretion of discount...    6,484,830           1,484,547           1,169,449
  Future development cost.   (1,869,101)        (15,068,164)                --
  Income tax..............   (7,508,139)        (14,604,066)           (269,251)
  Production rates 
    and other.............   (8,545,510)          1,901,254          (1,227,766)
                          --------------      --------------      --------------
          Net revisions...  (22,517,433)        (15,445,533)         (1,843,032)
Extensions, additions 
  and discoveries.           12,757,280          56,781,465           3,728,389
Production................   (3,372,040)         (2,390,023)         (1,156,297)
Development costs.........           --                  --                  --
Purchases in place........      397,644                  --           2,609,642
Sales in place............   (1,136,460)         (4,292,526)           (328,639)
                          --------------      --------------      --------------
     Net change...........  (13,871,009)         34,653,383           3,010,063
Standardized Measure,
   End of Period..........$  34,153,079       $  48,024,088       $  13,370,705
                          ==============      ==============      ==============
</TABLE>

         Year-end  weighted  average oil prices used in the estimation of proved
reserves and calculation of the standardized  measure were $13.46,  $19.50,  and
$18.00 per Bbl at December  31, 1997,  1996,  and 1995,  respectively.  Year-end
weighted average gas prices were $2.03, $3.37, and $1.85 per Mcf at December 31,
1997, 1996, and 1995,  respectively.  Price and cost revisions are primarily the
net result of changes in period-end prices, based on beginning of period reserve
estimates.

                                      F-22


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     Year ended December 31, 1997.
</LEGEND>
                       
<MULTIPLIER>                    1
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>               DEC-31-1997
<PERIOD-END>                    DEC-31-1997
<CASH>                          16,678,655
<SECURITIES>                    0
<RECEIVABLES>                   1,273,298
<ALLOWANCES>                    0
<INVENTORY>                     1,376,737
<CURRENT-ASSETS>                19,574,883
<PP&E>                          33,176,893
<DEPRECIATION>                  (6,607,487)
<TOTAL-ASSETS>                  46,713,978
<CURRENT-LIABILITIES>           4,702,267
<BONDS>                         0
           0
                     0
<COMMON>                        54,583
<OTHER-SE>                      39,442,974
<TOTAL-LIABILITY-AND-EQUITY>    46,713,978
<SALES>                         4,805,051
<TOTAL-REVENUES>                4,865,898
<CGS>                           3,591,003
<TOTAL-COSTS>                   4,890,854
<OTHER-EXPENSES>                (12,440)
<LOSS-PROVISION>                0
<INTEREST-EXPENSE>              (114,036)
<INCOME-PRETAX>                 101,520
<INCOME-TAX>                    2,514,154
<INCOME-CONTINUING>             (2,412,634)
<DISCONTINUED>                  0
<EXTRAORDINARY>                 0
<CHANGES>                       0
<NET-INCOME>                    (2,412,634)
<EPS-PRIMARY>                   (0.73)
<EPS-DILUTED>                   (0.73)
        



</TABLE>


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