ST MARY LAND & EXPLORATION CO
10-K, 2000-03-13
CRUDE PETROLEUM & NATURAL GAS
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K

[x] Annual Report  Pursuant to  Section 13  or 15(d) of the Securities  Exchange
Act of 1934

For the fiscal year ended December 31, 1999.

                                       OR

[ ] Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934.

                         Commission File Number 0-20872

                       ST. MARY LAND & EXPLORATION COMPANY
             (Exact name of registrant as specified in its charter)

            Delaware                                    41-0518430
  (State or other jurisdiction              (I.R.S. Employer Identification No.)
of incorporation or organization)

             1776 Lincoln Street, Suite 1100, Denver, Colorado 80203
             (Address of principal executive offices)     (Zip Code)

                                 (303) 861-8140
              (Registrant's telephone number, including area code)

           Securities registered pursuant to Section 12(b) of the Act:
                                      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  filer  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. [ ]

          The aggregate  market value of 13,348,976  shares of voting stock held
by  non-affiliates  of the Registrant,  based upon the closing sale price of the
common  stock on March 2, 2000 of $26.875  per share as  reported  on the Nasdaq
National  Market System,  was  $358,753,730. Shares of common stock held by each
director  and  executive  officer and by each person who owns 10% or more of the
outstanding  common stock or who is otherwise believed by the Company to be in a
control position have been excluded.  This  determination of affiliate status is
not necessarily a conclusive determination for other purposes.

          As of March 2, 2000, the  registrant  had 13,761,376  shares of common
stock outstanding.

                       DOCUMENT INCORPORATED BY REFERENCE

          The  information  required  by Part III  (Items  10, 11, 12 and 13) is
incorporated by reference from Registrant's  definitive proxy statement relating
to its 2000 annual meeting of  stockholders  to be filed no later than April 30,
2000.


<PAGE>

                                TABLE OF CONTENTS

ITEM                                                                        PAGE
                                     PART I

ITEM 1.    BUSINESS............................................................1
               Background......................................................1
               Business Strategy...............................................1
               Significant Developments Since December 31, 1998................3

ITEM 2.    PROPERTIES..........................................................4
               Domestic Operations.............................................4
               International Operations.......................................10
               Acquisitions...................................................10
               Reserves.......................................................11
               Production.....................................................12
               Productive Wells...............................................12
               Drilling Activity..............................................13
               Domestic Acreage...............................................14
               Non-Oil and Gas Activities.....................................14
               Competition....................................................15
               Markets and Major Customers....................................15
               Government Regulations.........................................15
               Title to Properties............................................16
               Operational Hazards and Insurance..............................17
               Employees and Office Space.....................................17
               Glossary.......................................................17

ITEM 3.    LEGAL PROCEEDINGS..................................................20

ITEM 4.    SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS................20

                                     PART II

ITEM 5.    MARKET FOR THE REGISTRANT'S COMMON EQUITY AND
           RELATED SECURITY HOLDERS MATTERS...................................21

ITEM 6.    SELECTED CONSOLIDATED FINANCIAL DATA...............................22

ITEM 7.    MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
           CONDITION AND RESULTS OF OPERATIONS................................24
               Overview.......................................................24
               Results of Operations..........................................27
               Liquidity and Capital Resources................................30
               Accounting Matters.............................................35
               Effects of Inflation and Changing Prices.......................35
               Financial Instrument Market Risk...............................36

                                        i

<PAGE>

                                TABLE OF CONTENTS

                                   (Continued)

ITEM                                                                        PAGE

ITEM 7A.   QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
               (Included within the content of ITEM 7.)

ITEM 8.    FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA........................38

ITEM 9.    CHANGES AND DISAGREEMENTS WITH ACCOUNTANTS ON
           ACCOUNTING AND FINANCIAL DISCLOSURE................................38

                                    PART III

ITEM 10.   DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.................38

ITEM 11.   EXECUTIVE COMPENSATION.............................................38

ITEM 12.   SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS
           AND MANAGEMENT.....................................................38

ITEM 13.   CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.....................38

                                     PART IV

ITEM 14.   EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND
           REPORTS ON FORM 8-K................................................39

                                       ii

<PAGE>

                                     PART I

ITEM 1.  BUSINESS

Background

         St. Mary Land & Exploration  Company,  together  with its  subsidiaries
("St. Mary" or the "Company"),  is an independent  energy company engaged in the
exploration,  development,  acquisition  and production of natural gas and crude
oil. St. Mary was founded in 1908 and was  incorporated in Delaware in 1915. St.
Mary's operations are focused in five core operating areas in the United States:
the Mid-Continent  region; the ArkLaTex region;  onshore Gulf Coast and offshore
Gulf of Mexico;  the Williston  Basin; and the Permian Basin. As of December 31,
1999, the Company had estimated net proved reserves of approximately 18.9 MMBbls
of oil and 207.6 Bcf of natural  gas,  or an  aggregate  of 321 BCFE (84% proved
developed, 65% gas) with a PV-10 value before tax of $351 million.

         From January 1, 1995,  through  December 31,  1999,  the Company  added
estimated net proved  reserves of 398.4 BCFE at an average  finding cost of $.81
per MCFE. The Company's  average annual  production  replacement was 294% during
this five-year period.

         In 1999  production  declined  6% to a total of 31.1  BCFE,  or average
daily  production  of 85.2 MMcf per day, as a result of  property  sales and the
loss of production from the St. Mary No. 3 in S. Horseshoe  Bayou. The Company's
2000 capital budget of  approximately  $105.0 million includes $60.5 million for
ongoing development and exploration  programs in the core operating areas, $32.5
million for niche  acquisitions  of oil and gas properties and $12.0 million for
higher-risk, large-target exploration prospects.

         The  Company's  principal  offices are located at 1776 Lincoln  Street,
Suite 1100, Denver, Colorado 80203, and its telephone number is (303) 861-8140.

Business Strategy

         St. Mary's objective is to build stockholder  value through  consistent
economic  growth in reserves and  production  and the resulting  increase in net
asset value per share, cash flow per share and earnings per share. A focused and
balanced  program of low to medium-risk  exploration  and  development and niche
acquisitions  in each of its core  operating  areas is  designed  to provide the
foundation  for steady  growth while the  Company's  portfolio  of  higher-risk,
large-target  exploration prospects has the potential to significantly  increase
the Company's reserves and production. All investment decisions are measured and
ranked by their  risk-adjusted  impact on per share value.  The Company does not
pursue growth solely for the sake of growth.

         St. Mary's  long-term  corporate  strategy focuses on growing value per
share, and not necessarily the absolute size of the Company. Management believes
that  independents  with equity  market  capitalizations  between  $300 and $600
million are best positioned to capitalize on  opportunities  in the domestic E&P
sector  and  therefore  to  realize  superior  returns  for their  stockholders.
Companies in this size range have critical mass and are able to sustain  quality
exploration,  development and niche acquisition programs that have a significant
impact on stockholder value.

         The Company will pursue  opportunities to monetize selected assets at a
premium and to repurchase  shares at  attractive  values in order to enhance the
growth in St. Mary's per share value while maintaining the market capitalization
of the  Company  within an optimal  size range.  St. Mary also will  continue to
focus its  resources  within  selected  basins in the U.S.  where the  Company's
expertise in geology, geophysics and drilling and completion techniques provides
competitive advantages.

                                      -1-
<PAGE>

         Principal elements of the Company's strategy are as follows:

         Focused  Geographic  Operations.  The Company focuses its  exploration,
development and acquisition activities in five core operating areas where it has
built  a  balanced   portfolio   of  proved   reserves,   development   drilling
opportunities and higher-risk  large-target  exploration prospects.  The Company
believes that its extensive  leasehold position is a strategic asset. Since 1990
St. Mary has  expanded its  technical  and  operating  staff and  increased  its
drilling, production and operating capabilities. Senior technical managers, each
possessing  over 20 years of  experience,  head up  regional  technical  offices
located near core properties and are supported by centralized  administration in
the  Company's  Denver  office.  St.  Mary  has  knowledgeable  and  experienced
professionals  at every level of the  organization.  St. Mary  believes that its
long-standing presence, its established networks of local industry relationships
and its  extensive  acreage  holdings  in its core  operating  areas  provide  a
significant  competitive advantage.  Additionally,  the Company believes that it
can  continue  to expand  its  operations  without  the need to  proportionately
increase the number of employees.

         Exploitation and Development of Existing  Properties.  The Company uses
its comprehensive  base of geological,  geophysical,  engineering and production
experience  in each of its core  operating  areas to  source  prospects  for its
ongoing,  low to medium-risk  development  and  exploration  programs.  St. Mary
conducts  detailed  geologic studies and uses an array of technologies and tools
including 3-D seismic imaging,  hydraulic  fracturing and reservoir  stimulation
techniques,  and  specialized  logging  tools to maximize  the  potential of its
existing  properties.  During 1999 the Company  participated  in 134 gross wells
with an 85% success rate and 33 recompletions with a 91% success rate.

         Large-Target Prospects. The Company generally invests approximately 15%
of its annual capital budget in higher-risk,  large-target exploration projects.
The  Company's  strategy  is to test  four or more of  these  large  exploration
prospects  each  year  which in total  have the  potential,  if  successful,  to
increase the Company's net reserves by 25% or more.  St. Mary seeks to invest in
a diversified mix of large-target  exploration projects and generally limits its
capital exposure by participating with other experienced industry partners.  St.
Mary plans to test several  large-target  prospects in the Gulf Region and Texas
during 2000.

         Selective  Acquisitions.  The  Company  seeks to make  selective  niche
acquisitions of oil and gas properties that complement its existing  operations,
offer  economies  of scale  and  provide  further  development  and  exploration
opportunities based on proprietary  geologic concepts.  Management believes that
the focus on smaller,  negotiated transactions where the Company has specialized
geologic   knowledge  or  operating   experience   has  enabled  it  to  acquire
attractively priced and  under-exploited  properties.  In addition,  the Company
will pursue  corporate  acquisitions if they can be made on an accretive  basis.
Examples of this type of  acquisition  include the Nance  Petroleum  Corporation
("Nance Petroleum" or "Nance") and King Ranch Energy,  Inc. ("King Ranch Energy"
or "KRE") acquisitions, both completed in 1999 for stock.

         St.  Mary's  strong  balance  sheet  positions  the  Company in 2000 to
exploit  acquisition  opportunities  arising throughout the upstream oil and gas
sector. Many companies are expected to divest assets during the year as a result
of continuing consolidation within the industry and the strong oil and gas price
environment that currently  exists.  St. Mary will continue to emphasize smaller
niche  acquisitions  utilizing  the  Company's  technical  expertise,  financial
flexibility and structuring  experience.  Many attractive acquisition candidates
are sourced in  cooperation  with St.  Mary's  regional  offices where the local
personnel  have a detailed  insight  into  emerging  opportunities  and geologic
potential.   Additionally,   the  Company  is  also  actively   seeking   larger
acquisitions  of assets or companies that would afford  opportunities  to expand
the Company's existing core areas,  acquire  additional  geoscientists or gain a
significant  acreage and  production  foothold in a new basin  within the United
States.

         Control  of  Operations.   The  Company  believes  it  is  increasingly
important to control geologic and operational decisions as well as the timing of
those decisions. In addition, the Company receives income in the form of monthly
COPAS  overhead  reimbursement  as  an  operator.  St.  Mary  plans  to  operate
approximately 70% of its capital budget in 2000.

                                      -2-
<PAGE>

         Financial  Flexibility.  A conservative  use of financial  leverage has
long been a  cornerstone  of St.  Mary's  strategy.  St. Mary  believes that the
preservation  of a strong  balance sheet is a competitive  advantage  because it
enables the Company to act quickly and decisively to capture  opportunities  and
provides the financial resources to weather periods of volatile commodity prices
or escalating costs.

Significant Developments Since December 31, 1998

         Acquisitions  of Oil and Gas  Properties.  The  Company  completed  two
significant  acquisitions with common stock in 1999. Nance Petroleum Corporation
was  acquired  in June with the  issuance  of  259,494  shares of stock and debt
assumption of $3.2 million.  This transaction added  approximately  13.7 million
BCFE of reserves.  The Company closed the acquisition of King Ranch Energy, Inc.
in December 1999, in a merger through the issuance of 2,666,187 shares of common
stock. The Company completed several smaller acquisitions  totaling $3.7 million
in  Louisiana  and the  Anadarko  Basin  and $1.3  million  in the  Permian  and
Williston basins.

         Year End  Reserves.  As of  December  31,  1999,  net  proved  reserves
increased 74% to 321 billion cubic feet  equivalent.  The Company added 103 BCFE
through acquisitions with stock and cash, 56 BCFE from drilling activities and 9
BCFE from net revisions of previous reserves resulting from higher year-end 1999
pricing partially offset by negative performance revisions.

         Stock  Repurchase Plan. In August 1998 the Company's Board of Directors
authorized  a stock  repurchase  program  whereby  St.  Mary may  purchase  from
time-to-time,  in open market purchases or negotiated  sales, up to 1,000,000 of
its own common shares. The Company  repurchased a total of 147,800 of its common
shares during 1998, 35,000 in 1999 and 15,000 shares to date in 2000.

         Khanty  Mansiysk Oil  Corporation  Shares.  The Company sold all of its
original  stock in KMOC in August  1999 for $1.9  million  realizing  a $150,000
gain. The Company elected to convert its receivable  into  additional  shares of
KMOC stock in February 2000, and is actively marketing these shares for sale.

         Summo Minerals Corporation.  The Company and Summo Minerals Corporation
("Summo")  completed a financing  agreement  with Resource  Capital  Fund,  L.P.
("RCF") to  restructure  the Company's  loan to Summo and to provide  additional
capital.  The  Company  received  $2.1  million  cash for a portion  of its note
receivable  and the  transfer  of 50% or  4,962,047  Summo  shares  to  RCF.  In
addition,  the Company  received  17.5 million  Summo  warrants  exercisable  at
CDN$.12.  RCF will  provide up to $2 million  in  additional  loans to Summo for
operating needs. The Company's  current principal balance due from Summo is $1.4
million.

         Large Target  Success.  The Sturlese #1 well was drilled to 16,467 feet
on the  Company's  Stallion  Prospect  and found 119 feet of pay in the MA22 and
MA24 sands.  This well is currently  producing from the MA24 sand with MA 22 pay
behind  pipe.  The  Sturlese  #3 reached  total depth of 17,000 feet in February
2000,  production liner was set, and the well is currently awaiting  completion.
Additional  drilling  to test other  fault  blocks in the  Stallion  Prospect is
anticipated in 2000.

                                      -3-
<PAGE>

ITEM 2.  PROPERTIES

Domestic Operations

         The Company's  exploration,  development and acquisition activities are
focused in five core operating areas:  the  Mid-Continent  region;  onshore Gulf
Coast and offshore Gulf of Mexico;  the ArkLaTex region;  the Williston Basin in
North  Dakota and Montana;  and the Permian  Basin in west Texas and New Mexico.
Information concerning each of the Company's major areas of operations, based on
the  Company's  estimated  net proved  reserves as of December 31, 1999,  is set
forth below.
<TABLE>
<CAPTION>
                                            Oil            Gas            MMCFE               PV-10 Value
                                            ---            ---            -----               -----------
                                         (MBbls)         (MMcf)      Amount Percent    (In thousands)     Percent
                                         -------         ------      --------------    --------------     -------
<S>                                      <C>           <C>         <C>         <C>          <C>           <C>
   Mid-Continent Region............         988         82,800      88,726      27.6%        $90,395       25.8%
   ArkLaTex Region.................       1,635         41,600      51,409      16.0%         46,990       13.4%
   Gulf Coast and Gulf of Mexico...       2,122         61,188      73,921      23.0%         95,174       27.1%
   Williston Basin.................       9,642          7,633      65,484      20.4%         73,781       21.0%
   Permian Basin...................       4,447         10,719      37,401      11.7%         41,466       11.8%
   Other (1).......................          66          3,702       4,099       1.3%          3,210         .9%
                                        ------------------------------------------------------------------------
   Total...........................      18,900        207,642     321,040     100.0%       $351,016      100.0%
                                        ========================================================================
</TABLE>
[FN]
- -----------
(1)      Includes  reserves  associated  with  properties  in Colorado,  Kansas,
         Louisiana, New Mexico, Texas, Utah and Wyoming.
</FN>

         Mid-Continent  Region.  Since  1973 St.  Mary has  been  active  in the
Mid-Continent  region  where  operations  are  managed by its  28-person  Tulsa,
Oklahoma office. The Company has ongoing exploration and development programs in
the Anadarko Basin of Oklahoma.  The  Mid-Continent  region accounted for 28% of
the Company's estimated net proved reserves as of December 31, 1999 or 88.7 BCFE
(79% proved  developed and 93% gas). The Company  participated in 58 gross wells
and recompletions in this region in 1999, including 22 Company-operated wells.

         The Company's  development and exploration  budget in the Mid-Continent
region for 2000 totals $21  million.  The  Company  plans to operate 34 drilling
wells  in the  Mid-Continent  region  during  2000 and to  utilize  two to three
drilling rigs  throughout  the year.  St. Mary also expects to participate in an
additional 10 to 20 wells to be operated by other entities.

         Anadarko   Basin.   The  Company's   long  history  of  operations  and
proprietary   geologic   knowledge   enable  the  Company  to  sustain  economic
development  and  exploration  programs  despite  periods  of  adverse  industry
conditions.  The Company is applying  state of the art  technology  in hydraulic
fracturing and innovative  well completion  techniques to accelerate  production
and associated cash flow from the region's tight gas  reservoirs.  St. Mary also
continues to benefit from a continuing  consolidation of operators in the basin.
The Company  periodically seizes attractive  opportunities to acquire properties
from companies that have elected to discontinue operations in the basin.

         The Company works  aggressively  to control its operating  costs and to
enhance its full cycle  economics.  In December  1998 the Company  realized  net
proceeds  of $22  million on the sale of its  interests  in eight  fields in the
Anadarko Basin.  This sale was part of the Company's ongoing strategy to enhance
the  return  on its  portfolio  of  assets  through  the  opportunistic  sale of
non-strategic  properties  during  periods  in the market  when such  properties
command premium valuations.

         Drilling activities will focus on lower to medium-risk prospects in the
Granite Wash,  Osborne and Red Fork  formations.  In addition,  the Company will
devote approximately 42% of its Mid-Continent  capital budget to deeper,  higher
potential  development  wells in the lower Morrow formation below 19,000 feet at
the NE Mayfield  Field and in various  other  fields  with  Morrow and  Springer
formations at depths between 10,000 and 16,000 feet.

                                      -4-
<PAGE>

         Carrier Prospect.  Within its inventory of large-target prospects,  the
Company  holds an  aggregate  11.2%  working  interest  in 25,800  acres in Leon
County,  Texas in the Cotton Valley reef play.  The Company's  Carrier  Prospect
acreage is located  approximately nine miles east of the trend of the industry's
initial prolific reef discoveries, and targets potentially larger reefs that are
postulated  to have  developed  in the  deeper  waters of the basin  during  the
Jurassic  period.  The Company and its  partners  completed a 52 square mile 3-D
seismic  survey in 1997.  St.  Mary holds a 22%  working  interest  in the first
prospect  that will test a large 3-D anomaly that has been  interpreted  to be a
platform reef situated in the deeper portion of the East Texas Basin to the east
of the industry's existing pinnacle reef discoveries.  St. Mary and its partners
plan to spud the initial test well in late 2000.

         Gulf Coast and Gulf of Mexico  Region.  St.  Mary's  presence  in south
Louisiana  dates to the early  1900's  when the  Company's  founders  acquired a
franchise  property in St. Mary Parish on the  shoreline  of the Gulf of Mexico.
These 24,900 acres of fee lands  constitute  one of the Company's  most valuable
assets and yielded more than $3 million of gross oil and gas royalty  revenue in
1999.  The Company's  onshore Gulf Coast and Gulf of Mexico  presence  increased
dramatically  in 1999 with the  acquisition of King Ranch Energy and is expected
to be a major growth area in 2000 and beyond. This acquisition  included 260,000
gross undeveloped acres (81,000 net acres) and 1,538 square miles of 3-D seismic
data.  The  Gulf  Coast  and  Gulf of  Mexico  region  accounted  for 23% of the
Company's  estimated  net proved  reserves as of December 31, 1999, or 73.9 BCFE
(77% proved developed and 83% gas).

         The Company's diverse  activities in the onshore Gulf Coast and Gulf of
Mexico  are  managed  by its  recently  expanded  12-person  regional  office in
Lafayette,  Louisiana,  and include ongoing development and exploration programs
in Point Coupee,  Cameron,  Lafourche,  Jefferson Davis, Vermilion and Calcasieu
parishes as well as several offshore Gulf of Mexico blocks. Advanced 3-D seismic
imaging  and   interpretation   techniques  are  revitalizing   exploration  and
development  activities in the Miocene  trend along the Gulf Coast.  St. Mary is
applying the latest  technologies to unravel the region's complex geology and to
extend  exploratory  drilling  into deeper  untested  formations.  The Company's
exploration and  development  budget in the Gulf Coast and Gulf of Mexico region
for 2000 is $25 million,  including  approximately  $12 million for large target
projects.

         The Judge Digby Field is the largest  field  acquired in the King Ranch
Energy  acquisition  and is located  outside Baton Rouge in Point Coupee Parish.
The Company has a 10% to 20% working  interest in six wells currently  producing
102 MMCF per day.  This ultra  deep  field  produces  from  multiple  Tuscaloosa
reservoirs  between  19,000 and  22,000  feet.  The  Parlange  #11 is  currently
drilling  toward a target depth of 24,450 feet and the  operator  plans to drill
another well following completion of this well.

         The Company plans three offset wells in the Constitution Field in South
Texas where a successful fracture stimulation  increased production from 540 MCF
and 85 Bbl per day to 4.2 MMCF and 600 Bbl per day.  St. Mary owns a 40% working
interest in this field.

         St. Mary and its partners have completed a 30 square mile 3-D survey on
the western and northern  flanks of the Edgerly  salt dome in Calcasieu  Parish,
Louisiana where a 16,000 acre leasehold  position was assembled during 1998. The
first well,  the Ledoux #1-35 was completed in 1999 for 2.5 MMCF and 248 Bbl per
day,  the second well drilled was dry,  and the  Collingwood  #24-1 is currently
completing.  The Company has identified a number of other promising anomalies on
the 3-D survey and expects to test several Hackberry prospects at shallow depths
between  10,000 and 13,000  feet in 2000.  The Company  has an  approximate  35%
working interest in the Edgerly prospect.

         St. Mary's recent  acquisition  of King Ranch  Energy,  its  historical
presence   in  southern   Louisiana,   its   established   network  of  industry
relationships and its extensive  technical database on the area have enabled the
Company to assemble an inventory of  large-target  prospects in the onshore Gulf
Coast and Gulf of Mexico region.

                                      -5-
<PAGE>

         In the Gulf of Mexico,  St. Mary has three high  potential,  3-D, large
target  prospects at Vermillion  273, W. El Gordo located on Matagorda 522L, and
Matagorda 701.  Vermillion 273, located in 160 feet of water offshore Louisiana,
is a 12,500 foot test for Pliocene  lower Lentic  objectives.  Matagorda  701 is
located  50 miles  east of Corpus  Christi,  Texas in 110 feet of water and will
test a large fault block on the east flank of the Matagorda 700 field.  The West
El Gordo  prospect is also a lower  Miocene  Marg A and Siph Davisi  prospect on
trend with  prolific  production  at  Matagorda  525/526 in shallow  Texas state
waters (see "Large-Target  Exploration Projects").  Because St. Mary's ownership
interest in certain of these prospects is relatively large, the Company plans to
sell or trade a  portion  of its  interests  in order  to  limit  the  Company's
exposure on any one well to 30%.

         The  disappointments  at South  Horseshoe  Bayou and at Atchafalaya Bay
discussed  below  underscore the risks inherent in the  exploration for deep gas
reserves in this  region.  St.  Mary  evaluates  the results of its  exploration
efforts  based on full  cycle  economic  returns  over a  multi-year  period and
believes  that  exploration  decisions  should not be based solely on any single
year's results.

         Fee Lands.  The Company owns 24,900  acres of fee lands and  associated
mineral rights in St. Mary Parish located  approximately  85 miles  southwest of
New  Orleans.  St. Mary also owns a 25% working  interest in  approximately  300
acres located offshore and immediately  south of the Company's fee lands.  Since
the initial discovery on the Company's fee lands in 1938, cumulative oil and gas
revenues,  primarily landowners' royalties,  to the Company from the Bayou Sale,
Horseshoe  Bayou and Belle  Isle  fields on its fee  lands  have  exceeded  $225
million.  St. Mary  currently  leases  11,668  acres of its fee lands and has an
additional  13,232 acres that are presently  unleased.  The Company's  principal
lessees are Vastar, Cabot, ExxonMobil and Sam Gary Jr. and Associates, a private
exploration company headquartered in Denver.

         St.  Mary  has   encouraged   development   drilling  by  its  lessees,
facilitated  the  origination of new prospects on acreage not held by production
and stimulated exploration interest in deeper,  untested horizons. The Company's
major  discovery on its fee lands at South  Horseshoe  Bayou in early 1997 and a
subsequent  successful  confirmation  well in early 1998 proved that significant
accumulations of gas are sourced and trapped at depths below 16,000 feet.

         South  Horseshoe  Bayou  Project.  In October  1995 the  Company  began
participation  as a working  interest  owner in its fee lands in St. Mary Parish
with a 25% working interest in this project; resulting in a net revenue interest
ranging from 36% to 40% due to its previously existing royalty position. The St.
Mary  Land &  Exploration  No.  1 well,  under a  turn-key  contract,  commenced
drilling  toward a target depth of 19,000 feet. In February 1996 this well began
encountering severe pressure and mechanical problems that could not be corrected
and in July 1996 the well was plugged without reaching total depth. The drilling
rig was skid and the  drilling  of a new well  commenced  on the same  site.  In
February 1997 the Company  announced a significant deep gas discovery at the St.
Mary Land & Exploration  No. 2 well.  This well was completed in the 17,300 foot
sand, and in January 1998 a  confirmation  well, the St. Mary Land & Exploration
No. 3, was  completed  in the same  interval.  In April  1998 the No. 2 well was
recompleted in the 17,900 foot sand and is currently  producing.  In August 1998
the No. 3 well was  shut-in as the result of  mechanical  problems  while it was
producing  approximately 33 MMcf per day. The two wells have produced 6.4 Bcf of
gas and 48 MBbls of oil, net to the  Company's  interest,  through  December 31,
1999. Management is currently evaluating whether to sidetrack or abandon the No.
3 well.

         The St. Mary Land &  Exploration  24-1 well (41% working  interest) was
spud in 1999 to test a fault block to the north of the  existing  production  as
part of the Company's  continuing  management and exploitation of its fee lands.
This well was  determined  to be dry and was  abandoned in February 2000 and all
costs through  year-end were charged to exploration  expense in the 1999 results
of operations.

         Atchafalaya  Bay  Prospect.  In March 1997 the  Company and its partner
acquired  seven tracts  (2,845  gross acres) in a Louisiana  state lease sale in
Atchafalaya  Bay. A  19,000-foot  test of a large 3-D  prospect  during 1998 was
unsuccessful  and the well was  completed  in a small  secondary  zone at 12,300
feet. The costs  associated with the drilling of this deep exploratory well were
expensed in 1998.

                                      -6-
<PAGE>

         Stallion  Prospect.  The Company's  Sturlese No. 1 well (31.25% working
interest)  on the Stallion  prospect was  completed in 1999 with 119 feet of net
pay in the MA 22 and MA 24 sands. This well is currently producing from the MA24
sand with MA 22 pay behind pipe.  The Sturlese #3 reached total depth of 17,000'
in February 2000, production liner was set and is currently awaiting completion.
Additional  drilling  to test other  fault  blocks is  anticipated  in 2000 (see
"Large-Target Exploration Projects").

         Patterson  Prospect.   The  Company's  Patterson  prospect  is  located
approximately  20 miles  north of the  Company's  fee lands in St.  Mary  Parish
within the lower Miocene  producing trend of south  Louisiana.  St. Mary holds a
25% working interest in leases and options totaling approximately 5,573 acres in
the prospect area which lies within a major  east-west  producing  trend between
the Garden City and  Patterson  fields.  An  unsuccessful  19,000-foot  test was
drilled in 1995 based on 2-D seismic data and existing well control. In order to
further evaluate this prospect,  in 1997 St. Mary and its partners  purchased 20
square miles of a regional 3-D seismic survey. PennzEnergy is currently drilling
an analog  prospect on trend to  Patterson  and should  reach total depth in the
first quarter  2000.  The Company is awaiting the results of this well and hopes
to  proceed  with the  drilling  of the  19,500-foot  MA sand  test by the third
quarter  2000  if  this  well  is  successful  (see  "Large-Target   Exploration
Projects").

         North  Parcperdue  Prospect.  The Company has a 25% working interest in
the North  Parcperdue  prospect  located in Vermilion  Parish.  The Bacque No. 1
well,  spud in 1999 was  unsuccessful  in the Marg Tex sands  but was  completed
uphole in the Marg Vag sands and is awaiting pipeline connection.

         ArkLaTex  Region.  The Company's  operations in the ArkLaTex region are
managed by its 16-person  office in Shreveport,  Louisiana.  The ArkLaTex region
accounted for 16% of the Company's  estimated net proved reserves as of December
31, 1999, or 51.4 BCFE (89% proved  developed and 81% gas).  The Company's  2000
capital budget for the ArkLaTex region is $10 million.

         In 1992 the Company  acquired the ArkLaTex oil and gas properties of T.
L.  James &  Company,  Inc.  as well as rights  to over  6,000  square  miles of
proprietary 2-D seismic data in the region. The Shreveport  office's  successful
development  and  exploration  programs  have  derived  from a  series  of niche
acquisitions completed since 1992 totaling $9.3 million. These acquisitions have
provided  access to strategic  holdings of undeveloped  acreage and  proprietary
packages  of  geologic  and  seismic  data,  resulting  in an active  program of
additional development and exploration.

         St. Mary's  holdings in the ArkLaTex  region are comprised of interests
in approximately 514 producing wells,  including 96 Company-operated  wells, and
interests  in leases  totaling  approximately  67,000  gross  acres and  mineral
servitudes totaling approximately 15,600 gross acres.

         Activities  in the  ArkLaTex  during 1999 focused on the search for new
opportunities  and  potential  analog  fields  as well as final  development  of
several  important field discoveries made by the Company's  geoscientists  since
1994. At the Box Church Field in Limestone County,  Texas, the Company installed
a field wide system of compression and gas lift to stabilize current  production
at 15 MMcf per day.  The  Company  operates  the field and holds an average  58%
working  interest.  Total cumulative gross field reserves are expected to exceed
100 Bcf of gas.

         The  Company  acquired a 50% working  interest  and  operations  of the
Rodessa  Cotton Valley Field in Caddo Parish,  Louisiana in July 1999. The field
consisted of one newly completed gas well. The St. Mary #1 Gipson has since been
drilled and tested at 1300 Mcf per day.  Four to six  additional  locations  are
planned to develop the field reserves of 14 BCFE.

         The Company  participated  in two successful  wells at the Ada Field in
Bienville Parish,  Louisiana with a combined initial production of 8,500 Mcf per
day.  The first well at  Trinidad  Field (25%  working  interest)  in  Henderson
County,  Texas tested at 1,800 Mcf per day. The Company also participated with a
15% working  interest in a discovery  well  producing  350 Bbl per day at the NE
Collins Cotton Valley Field located in Covington County, Mississippi.

                                      -7-
<PAGE>

         The Shreveport office assumed  operations of the Clarksville Field (44%
working  interest)  in Red River  County,  Texas  acquired as part of King Ranch
Energy. The field produces 740 Bbl per day from 35 wells.

         In 2000 the  Company  will  continue  to focus  on the  search  for new
opportunities  and  potential  analog  fields in which to apply its  proprietary
geologic  models and  production  techniques.  St. Mary believes that it is well
positioned to secure additional  acquisitions in the ArkLaTex region during 2000
as consolidation within the industry increases the divestiture activity.

         Williston Basin Region. The Company's operations in the Williston Basin
are conducted  through Nance Petroleum  Corporation,  a wholly owned  subsidiary
following its  acquisition  in June 1999.  Previously,  the Company's  Williston
Basin  interests  were owned  through its 74%  partnership  interest in Panterra
Petroleum,  in which Nance Petroleum held a 26% interest.  The Company currently
owns  interests in 82 fields within the basin's core  producing  area  including
134,000 gross acres,  83  Nance-operated  wells and 181 wells  operated by other
parties.

         The Williston Basin region accounted for 20% of the Company's estimated
net proved reserves as of December 31, 1999, or 65.5 BCFE (95% proved  developed
and 88%  oil).  St.  Mary  has  budgeted  approximately  $12.0  million  for the
Williston Basin development and exploration program.

         Nance's  operations  are  directed  by  senior  geoscientists  who have
devoted  their  careers  to the  development  of oil  and  gas  reserves  in the
Williston  Basin.  The  Company's  long-term  strategy  is  to  employ  advanced
technologies  to improve  drilling  results and  production in order to maximize
full cycle  economics.  For instance,  Nance has  successfully  used 3-D seismic
imaging to delineate structural and subtle stratigraphic features not previously
discernable using conventional exploration methods. This utilization of advanced
technologies by experienced geoscientists has helped Nance achieve a 94% success
rate in its operated exploration and development program since 1991.

         Two  new  discoveries  operated  by  Nance  were  completed  in 1999 in
McKenzie  County,  North  Dakota on the Mondak  prospect  where 3-D  seismic was
previously  shot.  The Federal 1-33  discovery  was  completed  and is currently
producing  440 Bbl and 400 MCF per day and the  confirmation  well,  the Federal
16-28 was  completed at year-end and is currently  producing 635 Bbl and 600 MCF
per day.  Another Nance  operated  well, the Federal 7-12 was drilled in the Glo
field, Cambell County,  Wyoming at year-end and is currently testing 200 Bbl per
day.

         Nance plans to conduct five  additional or extended 3-D surveys in 2000
over  existing  fields in the search for bypassed  pay zones.  A drilling rig is
expected to be kept active all year drilling 6-8 wells.

         Permian  Basin  Region.  The Permian  Basin area  covers a  significant
portion  of  eastern  New  Mexico  and  western  Texas  and is one of the  major
producing basins in the United States. The basin includes hundreds of oil fields
undergoing  secondary and enhanced  recovery  projects.  3-D seismic  imaging of
existing   fields  and   state-of-the-art   secondary   recovery   programs  are
substantially  increasing oil recoveries in the Permian Basin.  The optimization
of production and the careful control of operating costs are especially critical
during  periods  of low oil  prices,  such as in 1998.  Beginning  in 2000 Nance
Petroleum  Corporation will manage the Company's  interest in the Permian Basin.
The  Company  believes  that COPAS  overhead  income  will more than  offset the
general and administrative costs of managing these properties.

         St. Mary's  holdings in the Permian Basin derive from a series of niche
property  acquisitions  that date  back to 1995.  Management  believes  that its
Permian  Basin  operations  provide St. Mary with a solid base of long lived oil
reserves,  promising  longer-term  exploration and development prospects and the
potential for secondary  recovery  projects.  The Permian Basin region accounted
for 12% of the Company's  estimated net proved reserves as of December 31, 1999,
or 37.4 BCFE (84% proved developed and 71% oil).

         The  Company's   reservoir   engineers  have  identified  a  number  of
properties where the project economics of secondary recovery plans are favorable
under current prices. St. Mary's  geoscientists have also identified a number of
high quality prospects that are expected to be drilled in 2000.

                                       -8-
<PAGE>

         St. Mary  initiated a full-scale  multi-year  waterflood in 1998 at its
Parkway  (Delaware) Unit in Eddy County, New Mexico. The initial response to the
first phase of this waterflood has been excellent,  increasing  field production
by 500 Bbl per day. The  Company's  operations  in the Permian Basin during 2000
will focus on the expansion of the waterflood  project at Parkway and additional
secondary  recovery  work at the E.  Shugart  field.  As a result of higher  oil
prices,  the Company  also  expects to see new drilling at the Willow Lake Field
where a new  discovery  was  completed in 1999 and the Young North Field where a
successful recompletion increased production 150 Bbl per day.

         St. Mary also holds a 21.2% working interest in an unusual  30,450-acre
top lease in the North Ward Estes  Field in Ward  County,  Texas.  The  original
lease  will  expire  on  August 4,  2000.  Until  that  date,  working  interest
production  from  approximately  400 wells on the lease and the  development and
exploration rights on the lease are owned by Chevron U.S.A., Inc and Three-B Oil
Company.  After that date,  production of approximately  1,800 Bbl and 3,500 Mcf
per day  from  the  wells  located  on the  lease  and  future  development  and
exploration  rights on this 50 square mile property will revert to the ownership
and control of St. Mary and its partners.  The top lease will continue in effect
for as long as oil and/or gas is produced in paying quantities.

         Large-Target   Exploration  Projects.  The  Company  generally  invests
approximately  15% of its annual  capital  budget in  longer-term,  higher-risk,
high-potential  exploration projects.  During the past several years the Company
has  assembled  an inventory of large  potential  projects in various  stages of
development  which have the  potential  to  materially  increase  the  Company's
reserves.  The  Company's  strategy is to maintain a pipeline of seven to ten of
these high-potential prospects and to test four or more targets each year, while
furthering the development of early-stage projects and continuing the evaluation
of potential new exploration prospects.

         The  Company  seeks to  develop  large-target  prospects  by using  its
comprehensive  base  of  geological,  geophysical,  engineering  and  production
experience  in each of its focus  areas.  The  large-target  projects  typically
require  relatively  long  lead  times  before a well is  commenced  in order to
develop proprietary geologic concepts,  assemble leasehold positions and acquire
and fully  evaluate  3-D seismic or other data.  The Company  seeks to apply the
latest technology,  including 3-D seismic imaging,  wherever  appropriate in its
prospect  development  and  evaluation  to mitigate a portion of the  inherently
higher risk of these  exploration  projects.  In addition,  the Company seeks to
invest in a diversified  mix of  exploration  projects and generally  limits its
capital exposure by participating with other experienced industry partners.

         The  following  table  summarizes  the  Company's  active  large-target
exploration projects (see also "Properties").
<TABLE>
<CAPTION>
                                                                                   St. Mary          Expected
                                                                                    Working            Test
       Project Name               Objective                Location               Interest(1)         Date(2)
<S>                          <C>                   <C>                               <C>            <C>
       Stallion              MA  Sands             Cameron Parish, LA                31.2%          Early 2000
       Patterson             MA-3 , MA-7           St. Mary Parish, LA               25.0%          Mid   2000
       W. El Gordo           MA - Siph D           Gulf of Mexico                    30.0%          Late  2000
       Vermillion 273        BOL A                 Gulf of Mexico                    52.5%          Late  2000
       W. Cameron 39         MA  Sands             Gulf of Mexico                    20.0%          Early 2001
       Carrier               Cotton Valley Reef    Leon County, TX                   22.0%          Early 2001
       Matagorda             MA - Siph D           Gulf of Mexico                    80.0%          Mid   2001
</TABLE>
[FN]
- ---------
(1)      Working  interests  differ  from net revenue  interests  due to royalty
         interest  burdens.  St Mary  plans  to sell or trade a  portion  of its
         interest  in order to limit the  Company's  exposure in any one well to
         30%.
(2)      Expected  Test  Date  refers to the  period  during  which the  Company
         anticipates the completion of an exploratory well.
</FN>

                                      -9-
<PAGE>

International Operations

         In 1997 the Company  completed the sale or  disposition of the majority
of its  international  investments.  In 1998  the  Company  sold  its  remaining
properties in Canada.

         Russian Joint Venture.  In February 1997, the Company sold its interest
in The Limited Liability Company Chernogorskoye (the "Russian joint venture") to
Khanty  Mansiysk Oil  Corporation  ("KMOC"),  formerly  known as Ural  Petroleum
Corporation, for consideration totaling $17.6 million. The Company received $5.6
million in cash, before transaction costs, $1.9 million of KMOC common stock and
a convertible  receivable in a form equivalent to a retained  production payment
of  approximately  $10.1 million plus interest at 10% per annum from the limited
liability company formed to hold the Russian joint venture. The Company sold the
original  shares of KMOC stock in August 1999 realizing a gain of $150,000.  St.
Mary elected to convert its  receivable  to  additional  shares of KMOC stock on
February 10, 2000, and is actively marketing these shares for sale.

Acquisitions

         The Company's  strategy is to make selective niche  acquisitions of oil
and gas  properties  within its core operating  areas in the United States.  The
Company seeks to acquire  properties  that  complement its existing  operations,
offer  economies  of scale  and  provide  further  development  and  exploration
opportunities based on proprietary geologic concepts or advanced well completion
techniques.   Management  believes  that  the  Company's  success  in  acquiring
attractively priced and  under-exploited  properties has resulted from its focus
on smaller,  negotiated  transactions where the Company has specialized geologic
knowledge  or  operating  experience.  In  addition,  the  Company  will  pursue
corporate acquisitions when they can be made on an accretive basis.

         Although the Company periodically  evaluates large acquisition packages
offered in  competitive  bid or auction  formats,  the Company has  continued to
emphasize  property  acquisitions  having values of less than $10 million.  This
size of acquisition package generally attracts less competition and is where the
Company's technical expertise,  financial flexibility and structuring experience
afford a competitive advantage.

         The Company completed $45 million in oil and gas property  acquisitions
in 1999,  the largest dollar value in the Company's  history.  Included were two
larger  acquisitions of private companies in exchange for St. Mary common stock.
In June 1999,  the Company  acquired  Nance  Petroleum  in exchange  for 259,494
shares of stock and debt  assumption of $3.2  million.  This  transaction  added
approximately 13.7 million BCFE of reserves.  The Company closed the acquisition
of King Ranch Energy in December 1999, in a merger in which 2,666,187  shares of
common stock were issued.  The Company  completed  several smaller  acquisitions
totaling  $3.7 million in Louisiana  and the Anadarko  Basin and $1.3 million in
the Permian  and  Williston  basins.  During the last five years the Company has
closed  over $105  million  of niche  acquisitions  where  proprietary  geologic
knowledge or operating  expertise and an attractive stock and performance  track
record have afforded the Company a competitive advantage.

         In 2000 St. Mary has reserved $32.5 million of its capital  program for
property acquisitions. However, the Company has the financial capacity to commit
substantially greater resources to purchases should additional  opportunities be
identified.

                                      -10-
<PAGE>

Reserves

         At December  31,  1999,  Ryder  Scott  Company,  independent  petroleum
engineers,  evaluated properties representing approximately 82% of the Company's
total PV-10 value and the Company  evaluated  the  remainder.  The PV-10  values
shown in the following  table are not intended to represent  the current  market
value of the  estimated  net proved oil and gas  reserves  owned by the Company.
Neither prices nor costs have been escalated,  but prices include the effects of
hedging contracts.

         The following table sets forth summary  information with respect to the
estimates of the Company's net proved oil and gas reserves for each of the years
in the  three-year  period ended  December 31, 1999,  as prepared by Ryder Scott
Company and St. Mary:
<TABLE>
<CAPTION>
                                                                 As of December 31,
                                                                 ------------------
                                                       1999         1998(1)             1997
                                                       ----         -------             ----
<S>                                                <C>              <C>            <C>
           Proved Reserves Data:
           Oil (MBbls)                                18,900            8,614          11,493
           Gas (MMcf)                                207,642          132,605         196,230
           MMCFE                                     321,042          184,289         265,188
           PV-10 value (in thousands)              $ 351,000        $ 125,126       $ 262,006
           Proved Developed Reserves                     84%              86%             87%
           Production Replacement                       541%             (25%)           358%
           Life (years)                                  6.1             6.5              7.3
</TABLE>
[FN]
- ---------
(1)      The Company's  year-end 1998 reserves reflect property  dispositions of
         39.6 BCFE, discoveries and extensions of 40.8 BCFE, acquisitions of 5.3
         BCFE, negative price-related revisions of 18.2 BCFE and a write-down of
         38.8 BCFE of proved reserves at South Horseshoe Bayou.
</FN>
         The present value of estimated  future net revenues before income taxes
of the Company's reserves was $351 million as of December 31, 1999. This present
value is based on a  benchmark  of prices  in effect at that date of $25.60  per
barrel of oil (NYMEX) and $2.32 per MMBtu of gas (Gulf Coast spot  price),  both
of which are adjusted for  transportation and basis  differential.  These prices
were 112 percent and 25 percent higher,  respectively,  than prices in effect at
the end of 1998.

                                      -11-
<PAGE>

Production

         The  following  table  summarizes  the  average  volumes of oil and gas
produced  from  properties  in which the  Company  held an  interest  during the
periods indicated:
<TABLE>
<CAPTION>
                                                       Years Ended December 31,
                                                       ------------------------
                                                     1999       1998        1997
                                                     ----       ----        ----
<S>                                               <C>        <C>         <C>
  Operating Data:
           Net production (1):
   Oil (MBbls)...................................   1,383      1,275       1,188
   Gas (MMcf)....................................  22,805     25,440      22,900
   MMCFE.........................................  31,104     33,090      30,024
  Average net daily production (1):

   Oil (Bbls)....................................   3,790      3,493       3,254
   Gas (Mcf).....................................  62,478     69,698      62,739
   MCFE..........................................  85,216     90,656      82,263
  Average sales price (2):

   Oil (per Bbl)................................. $ 16.56    $ 12.98     $ 18.87
   Gas (per Mcf)................................. $  2.17    $  2.13     $  2.33
  Additional per MCFE data:
   Lease operating expense....................... $   .44    $   .39     $   .35
   Production taxes.............................. $   .16    $   .12     $   .16
</TABLE>
[FN]
- ---------
(1)      Production  from South  Horseshoe  Bayou and sold  Oklahoma  properties
         represented  18.1%  and 6.5%  respectively,  or a total of 24.6% of the
         1998 production total.
(2)      Includes  the  effects  of  the  Company's   hedging   activities  (see
         "Management's  Discussion  and  Analysis  of  Financial  Condition  and
         Results of Operations--Overview").
</FN>
         The   Company   uses   financial   hedging    instruments,    primarily
fixed-for-floating  price swap  agreements  and no-cost collar  agreements  with
financial  counterparties,  to manage its exposure to  fluctuations in commodity
prices.  The Company also employs the use of  exchange-listed  financial futures
and options as part of its hedging program for crude oil.

Productive Wells

         The  following  table sets forth  information  regarding  the number of
productive  wells in which the Company  held a working  interest at December 31,
1999. Productive wells are either producing wells or wells capable of commercial
production  although  currently  shut in.  One or more  completions  in the same
borehole are counted as one well. A well is  categorized  under state  reporting
regulations  as an oil well or a gas  well  based  upon the  ratio of gas to oil
produced when it first  commenced  production,  and such  designation may not be
indicative of current production.
<TABLE>
<CAPTION>
                                     Gross         Net
                                     -----         ---
<S>                                  <C>           <C>
                             Oil     1,178         312
                             Gas     1,359         250
                                    -------       -----
                           Total     2,537         562
                                    =======       =====
</TABLE>

                                      -12-
<PAGE>

Drilling Activity

         The  following  table sets forth the wells drilled and  recompleted  in
which the Company participated during each of the three years indicated:
<TABLE>
<CAPTION>
                                                        Years Ended December 31,
                                                        ------------------------
                                                  1999               1998              1997
                                                  ----               ----              ----
                                             Gross     Net      Gross     Net      Gross    Net
                                             -----     ---      -----     ---      -----    ---
<S>                                           <C>     <C>        <C>     <C>        <C>    <C>
  Domestic:
         Development:
          Oil...........................       26     10.45        6       .28       10     3.06
          Gas...........................      105     22.26      109     26.04       92    19.64
          Non-productive................       14      5.75       12      3.98       15     4.35
                                             ---------------------------------------------------
              Total.....................      145     38.46      127     30.30      117    27.05
                                             ---------------------------------------------------
  Exploratory:
          Oil...........................        1       .20        1       .50        4     1.21
          Gas...........................       12      3.84        3       .95        7     2.04
          Non-productive................        9      2.56        6      1.05        5     1.93
                                             ---------------------------------------------------
              Total.....................       22      6.60       10      2.50       16     5.18
                                             ---------------------------------------------------
      Farmout or non-consent                    6         -        4         -        4        -
                                             ---------------------------------------------------
         Grand Total(1) ................      173     45.06      141     32.80      137    32.23
                                             ===================================================
</TABLE>
[FN]
- ---------
(1)      Does not include  1and 4 gross wells  completed  on the  Company's  fee
         lands during 1998 and 1997, respectively.
</FN>
         All of the Company's  drilling  activities  are conducted on a contract
basis with  independent  drilling  contractors.  The  Company  owns no  drilling
equipment.

                                      -13-
<PAGE>

Domestic Acreage

         The following table sets forth the gross and net acres of developed and
undeveloped  oil and gas leases,  fee properties,  mineral  servitudes and lease
options  held by the  Company  as of  December  31,  1999.  Undeveloped  acreage
includes leasehold interests that may already have been classified as containing
proved undeveloped reserves.
<TABLE>
<CAPTION>
                                                          Developed            Undeveloped
                                                          Acreage (1)          Acreage (2)               Total
                                                          -----------          -----------               -----
                                                   Gross        Net      Gross         Net        Gross       Net
                                                   -----        ---      -----         ---        -----       ---
<S>                                               <C>       <C>         <C>         <C>       <C>          <C>
 Arkansas.....................................      4,059       800         167          54       4,226        854
  Louisiana...................................    107,862    35,589      69,596      19,259     177,458     54,848
  Montana.....................................     16,922     8,527      50,688      35,086      67,610     43,613
  New Mexico..................................      7,880     2,028       3,400       1,605      11,280      3,633
  North Dakota................................     36,887    11,354     109,834      44,411     146,721     55,765
  Oklahoma....................................    115,798    25,549      40,411      10,556     156,209     36,105
  Texas.......................................    167,142    64,548     261,903      78,340     429,045    142,888
  Other (3) ..................................     14,334     5,473      27,276       9,828      41,610     15,301
                                                ------------------------------------------------------------------
      Subtotal...........................         470,884   153,868     563,275     199,139   1,034,159    353,007
                                                ------------------------------------------------------------------
 Louisiana Fee Properties.....................     10,334    10,334      14,580      14,580      24,914     24,914
 Louisiana Mineral Servitudes.................     10,125     5,509       5,511       5,191      15,636     10,700
                                                ------------------------------------------------------------------
      Subtotal................................     20,459    15,843      20,091      19,771      40,550     35,614
                                                ------------------------------------------------------------------
      GRAND TOTAL ............................    491,343   169,711     583,366     218,910   1,074,709    388,621
                                                ==================================================================
</TABLE>
[FN]
- ---------
(1)      Developed  acreage  is  acreage  assigned  to  producing  wells for the
         spacing unit of the producing  formation.  Developed acreage in certain
         of the  Company's  properties  that include  multiple  formations  with
         different well spacing  requirements may be considered  undeveloped for
         certain formations, but have only been included as developed acreage in
         the presentation above.
(2)      Undeveloped  acreage  is lease  acreage  on which  wells  have not been
         drilled or  completed to a point that would  permit the  production  of
         commercial quantities of oil and gas regardless of whether such acreage
         contains estimated net proved reserves.
(3)      Includes interests in Alabama, Colorado, Kansas, Mississippi,  Utah and
         Wyoming.  St.  Mary also holds an override  interest  in an  additional
         44,388 gross acres in Utah.
</FN>
Non-Oil and Gas Activities

         Summo  Minerals.   At  December  31,  1998,  the  Company,   through  a
subsidiary,  owned  9.9  million  shares  or 37% of Summo  Minerals  Corporation
("Summo")  and had  advanced  $2.9  million to Summo under an interim  financing
arrangement.  Summo is a North American mining company  focusing on finding late
exploration  stage,  low to  medium-sized  copper deposits in the United States.
Summo's  common shares are listed on the Toronto Stock Exchange under the symbol
"SMA." In June 1999, the Company participated in a financing package arrangement
with  Summo  and  Resource  Capital  Fund L.P.  ("RCF").  The  Company  received
$2,096,000 cash and 17,500,000  Summo warrants in exchange for reducing  Summo's
note receivable to $1,400,000 and transferring  4,962,047 Summo common shares to
RCF.  As a result of this  transfer  of shares  to RCF the  Company's  ownership
percentage was reduced from 37% to 18%. The loan is secured by Summo's  interest
in the Lisbon Valley Project and bears interest at LIBOR plus 2.5%. The warrants
have an exercise  price of CDN$0.12  per share,  are fully  vested and expire on
June 25, 2004.  The  remaining  4,962,046  shares of Summo common stock that the
Company  still  owns  have a  recorded  value  of  $255,000  that  includes  the
unrealized gain on marketable equity  securities.  Management  believes that the
remaining  investment in Summo is realizable.  The Company continually  analyzes
the  realizability  of its  investment  in  Summo  in  view  of the  effects  of
persistent  depressed  copper prices and increased  worldwide  copper  inventory
levels. In January 2000 Summo issued 1,016,594 shares of its common stock to the
Company as payment of interest on the Company's note  receivable  from Summo. On
issuance of these shares, the Company's ownership in Summo increased to 19%.

                                      -14-
<PAGE>

         The June 1999 financing package also resulted in the termination of the
May 1997  agreement  which was discussed in the Company's  Annual Report on Form
10-K/A-3 for the year ended  December 31, 1998. As a result of the new financing
arrangement, the Company is not obligated to fund any future loans to Summo.

Competition

         Competition in the oil and gas business is intense,  particularly  with
respect to the acquisition of producing  properties,  proved undeveloped acreage
and  leases.  Major  and  independent  oil and gas  companies  actively  bid for
desirable oil and gas  properties  and for the equipment and labor  required for
their operation and development.  The Company believes that the locations of its
leasehold acreage, its exploration, drilling and production capabilities and the
experience of its management and that of its industry partners  generally enable
the Company to compete effectively. Many of the Company's competitors,  however,
have financial  resources and exploration,  development and acquisition  budgets
that  are  substantially  greater  than  those of the  Company,  and  these  may
adversely  affect the  Company's  ability to  compete,  particularly  in regions
outside of the Company's principal producing areas. Because of this competition,
there can be no  assurance  that the Company will be  successful  in finding and
acquiring producing properties and development and exploration  prospects at its
planned capital funding levels.

Markets and Major Customers

         During  1999  one  customer  individually  accounted  for  13.3% of the
Company's  total  oil and gas  production  revenue.  During  1998 no  individual
customer accounted for 10% or more of the Company's total oil and gas production
revenue. During 1997 two customers individually accounted for 10.6% and 10.2% of
the Company's total oil and gas production revenue.

Government Regulations

         The Company's  business is subject to various federal,  state and local
laws and  governmental  regulations  that may be  changed  from  time to time in
response to economic or  political  conditions.  Matters  subject to  regulation
include  discharge  permits for drilling  operations,  drilling  bonds,  reports
concerning  operations,  the  spacing  of  wells,  unitization  and  pooling  of
properties, taxation and environmental protection. From time to time, regulatory
agencies  have  imposed  price   controls  and   limitations  on  production  by
restricting  the  rate of flow of oil and  gas  wells  below  actual  production
capacity in order to conserve supplies of oil and gas.

         The  Company's  operations  could  result  in  liability  for  personal
injuries,  property  damage,  oil  spills,  discharge  of  hazardous  materials,
remediation  and clean-up  costs and other  environmental  damages.  The Company
could be liable for environmental damages caused by previous property owners. As
a result,  substantial liabilities to third parties or governmental entities may
be incurred,  and the payment of such liabilities  could have a material adverse
effect on the  Company's  financial  condition  and results of  operations.  The
Company  maintains  insurance  coverage for its  operations,  including  limited
coverage for sudden  environmental  damages, but does not believe that insurance
coverage  for  environmental  damages  that  occur over time is  available  at a
reasonable cost. Moreover,  the Company does not believe that insurance coverage
for the full potential  liability  that could be caused by sudden  environmental
damages is  available  at a  reasonable  cost.  Accordingly,  the Company may be
subject to liability or may lose  substantial  portions of its properties in the
event of certain  environmental  damages.  The Company  could incur  substantial
costs to comply with environmental laws and regulations.

                                      -15-
<PAGE>

         Certain  operations  the  Company  conducts  are on Federal oil and gas
leases that the Minerals  Management  Service (the 'MMS')  administers.  The MMS
issues such leases through competitive bidding.  These leases contain relatively
standardized  terms and require  compliance  with detailed MMS  regulations  and
orders pursuant to the Outer  Continental  Shelf Lands Act (which are subject to
change by the MMS).  For offshore  operations,  lessees must obtain MMS approval
for  exploration  plans  and  development  and  production  plans  prior  to the
commencement  of such  operations.  In addition to permits  required  from other
agencies  (such  as the  Coast  Guard,  the  Army  Corps  of  Engineers  and the
Environmental  Protection  Agency),  lessees  must  obtain a permit from the MMS
prior to the  commencement  of drilling.  Lessees must also comply with detailed
MMS regulations  governing,  among other things,  engineering  and  construction
specifications for offshore production facilities, safety procedures, flaring of
production,  plugging  and  abandonment  of Outer  Continental  Shelf OCS wells,
calculation  of  royalty  payments  and the  valuation  of  production  for this
purpose, and removal of facilities.  To cover the various obligations of lessees
on the OCS, the MMS generally  requires that lessees post  substantial  bonds or
other acceptable  assurances that such obligations will be met. The cost of such
bonds or other surety can be  substantial,  and there is no  assurance  that the
Company can continue to obtain bonds or other surety in all cases. Under certain
circumstances the MMS may require any Company operations on Federal leases to be
suspended or terminated.

         The MMS has  under  consideration  proposals  to change  the  method of
calculating  royalties  and the  valuation  of crude oil  produced  from federal
leases.  These changes,  if adopted,  would modify the valuation  procedures for
crude oil to reduce  use of oil  posted  prices  and assign a value to crude oil
intended to better reflect market value.  The Company cannot predict what action
the MMS will  take on this  matter,  or can it  predict  at this  stage  how the
Company might be affected if the MMS adopts such changes.

         The Oil  Pollution  Act of 1990  imposes a variety  of  regulations  on
"responsible   parties"   related  to  the   prevention   of  oil  spills.   The
implementation  of new, or the modification of existing,  environmental  laws or
regulations, including regulations promulgated pursuant to the Oil Pollution Act
of 1990, could have a material adverse impact on the Company.

         The recent trend toward stricter standards in environmental legislation
and  regulation  is likely to  continue.  Initiatives  to further  regulate  the
disposal of oil and gas wastes at the federal,  state and local level could have
a material impact on the Company.


Title to Properties

         Substantially  all of the Company's working interests are held pursuant
to leases from third parties.  A title opinion is usually  obtained prior to the
commencement  of drilling  operations  on  properties.  The Company has obtained
title opinions or conducted a thorough title review on substantially  all of its
producing  properties  and  believes  that  it has  satisfactory  title  to such
properties in accordance  with standards  generally  accepted in the oil and gas
industry.  The Company's  properties are subject to customary royalty interests,
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 performs only a minimal title investigation before acquiring undeveloped
properties.

                                      -16-
<PAGE>

Operational Hazards and Insurance

         The oil  and gas  business  involves  a  variety  of  operating  risks,
including fire, explosions, blow-outs, pipe failure, casing collapse, abnormally
pressured  formations and environmental  hazards such as oil spills,  gas leaks,
ruptures and  discharges of toxic gases.  The occurrence of any such event could
result in  substantial  losses to the  Company  due to injury  and loss of life;
severe damage to and destruction of property,  natural  resources and equipment;
pollution and other environmental damage; clean-up responsibilities;  regulatory
investigation  and penalties and suspension of  operations.  The Company and the
operators of properties in which it has an interest  maintain  insurance against
some, but not all, potential risks. However, there can be no assurance that such
insurance  will be adequate to cover any losses or exposure for  liability.  The
occurrence  of a  significant  unfavorable  event not fully covered by insurance
could have a material  adverse affect on the Company's  financial  condition and
results of operations. Furthermore, the Company cannot predict whether insurance
will continue to be available at a reasonable cost or at all.

Employees and Office Space

         As of December 31, 1999, the Company had 142 full-time employees.  None
of the Company's employees is subject to a collective bargaining agreement.  The
Company  considers  its  relations  with its  employees to be good.  The Company
leases approximately 35,900 square feet of office space in Denver, Colorado, for
its  executive  and  administrative  offices,  of  which  7,200  square  feet is
subleased.  The Company also leases  approximately  15,000 square feet of office
space in Tulsa,  Oklahoma,  approximately  7,300  square feet of office space in
Shreveport,  Louisiana,  approximately 7,500 square feet in Lafayette, Louisiana
and approximately 10,900 square feet in Billings,  Montana. The Company believes
that its current facilities are adequate.

Glossary

         The terms defined in this section are used throughout this Form 10-K.

2-D seismic or 2-D data. Seismic data that are acquired and processed to yield a
two-dimensional cross-section of the subsurface.

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

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

Bcf. Billion cubic feet, used herein in reference to natural gas.

BCFE. Billion cubic feet of gas equivalent. Gas equivalents are determined using
the ratio of six Mcf of gas (including gas liquids) to one Bbl of oil.

Behind pipe  reserves.  Estimated  net proved  reserves in a formation  in which
production  casing  has  already  been  set in the  wellbore  but has  not  been
perforated and production tested.

BOE.  Barrels of oil equivalent.  Oil equivalents are determined using the ratio
of six Mcf of gas (including gas liquids) to one Bbl of oil.

Development  well.  A well  drilled  within  the  proved  area  of an oil or gas
reservoir to the depth of a  stratigraphic  horizon known to be productive in an
attempt to recover proved undeveloped reserves.

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

                                      -17-
<PAGE>

Estimated  net proved  reserves.  The  estimated  quantities of oil, gas and 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.

Exploratory  well.  A well drilled to find and produce oil or gas in an unproved
area,  to find a new reservoir in a field  previously  found to be productive of
oil or gas in another reservoir, or to extend a known reservoir.

Fee land.  The most  extensive  interest  which can be owned in land,  including
surface and mineral (including oil and gas) rights.

Finding  cost.  Expressed in dollars per BOE.  Finding  costs are  calculated by
dividing the amount of total capital  expenditures for oil and gas activities by
the  amount of  estimated  net proved  reserves  added  during  the same  period
(including the effect on proved reserves of reserve revisions).

Gross acres. An acre in which a working interest is owned.

Gross well. A well in which a working interest is owned.

Hydraulic  fracturing.  A procedure to stimulate production by forcing a mixture
of fluid and proppant  (usually  sand) into the formation  under high  pressure.
This  creates  artificial  fractures  in  the  reservoir  rock  which  increases
permeability and porosity.

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

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

MBOE.  One thousand barrels of oil equivalent.

MMBOE.  One million barrels of oil equivalent.

Mcf.  One thousand cubic feet.

MCFE. One thousand cubic feet of gas equivalent.  Gas equivalents are determined
using the ratio of six Mcf of gas (including gas liquids) to one Bbl of oil.

MMcf.  One million cubic feet.

MMCFE. One million cubic feet of gas equivalent.  Gas equivalents are determined
using the ratio of six Mcf of gas (including gas liquids) to one Bbl of oil.

MMBtu.  One million  British  Thermal Units. A British  Thermal Unit is the heat
required  to raise the  temperature  of a  one-pound  mass of water  one  degree
Fahrenheit.

Net acres or net wells.  The sum of the fractional  working  interests  owned in
gross acres or gross wells.

Net asset value per share.  The result of the fair market  value of total assets
less total  liabilities,  divided by the total number of  outstanding  shares of
common stock.

PV-10 value. The present value of estimated future gross revenue to be generated
from  the  production  of  estimated  net  proved  reserves,  net  of  estimated
production and future  development costs, using prices and costs in effect as of
the date indicated  (unless such prices or costs are subject to change  pursuant
to  contractual  provisions),  without  giving  effect to  non-property  related
expenses such as general and  administrative  expenses,  debt service and future
income tax expenses or to depreciation,  depletion and amortization,  discounted
using an annual discount rate of 10%.

                                      -18-
<PAGE>

Productive  well.  A well that is  producing  oil or gas or that is  capable  of
production.

Proved developed reserves. Reserves that can be expected to be recovered through
existing wells with existing equipment and operating methods.

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.

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

Reserve life.  Expressed in years,  represents the estimated net proved reserves
at a specified date divided by forecasted  production for the following 12-month
period.

Royalty.  The  interest  paid to the  owner of  mineral  rights  expressed  as a
percentage  of gross income from oil and gas produced and sold  unencumbered  by
expenses.

Royalty interest.  An interest in an oil and gas property entitling the owner to
shares of oil and gas production free of costs of  exploration,  development and
production. Royalty interests are approximate and are subject to adjustment.

Undeveloped  acreage.  Lease  acreage on which  wells  have not been  drilled or
completed to a point that would permit the  production of commercial  quantities
of oil and gas, regardless of whether such acreage contains estimated net proved
reserves.

Working  interest.  The  operating  interest  that  gives the owner the right to
drill,  produce and conduct operating activities on the property and to share in
the production.

                                      -19-
<PAGE>

ITEM 3.  LEGAL PROCEEDINGS

         To the  knowledge of  management,  no claims are pending or  threatened
against  the  Company  or  any  of  its  subsidiaries   which   individually  or
collectively  could have a material adverse effect upon the Company's  financial
condition or results of operations.

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

          On  December  16,  1999,  St.  Mary  held  a  special  meeting  of the
stockholders to vote on a proposal to issue 2,666,252  shares of St. Mary common
stock under the merger  agreement  by which St.  Mary was to acquire  King Ranch
Energy,  Inc. The proposal  was  approved by a majority of the  stockholders  as
indicated by the following tabulation of votes:
<TABLE>
<CAPTION>
<S>                               <C>
                For:              9,121,635
                Against:             12,914
                Abstain:              6,527
                Broker non-votes:         0
</TABLE>
                                      -20-
<PAGE>

                                     PART II

ITEM 5.  MARKET FOR THE REGISTRANT'S COMMON STOCK AND RELATED
         SECURITY HOLDERS MATTERS

         Market Information.  The Company's common stock is traded on the Nasdaq
National  Market  System  under the symbol  MARY.  The range of high and low bid
prices for the  quarterly  periods in 1999 and 1998,  as  reported by the Nasdaq
National Market System, is set forth below:
<TABLE>
<CAPTION>
      Quarter Ended                                   High                 Low
      -------------                                   ----                 ---
<S>                                                 <C>                  <C>
      March 31, 1999                                $20.750              $14.875
      June 30, 1999                                  21.375               15.250
      September 30, 1999                             29.813               15.250
      December 31, 1999                              28.063               20.250

      March 31, 1998                                $39.375              $26.250
      June 30, 1998                                  39.625               21.625
      September 30, 1998                             25.000               15.000
      December 31, 1998                              23.875               15.500
</TABLE>

         On March 2, 2000, the closing sale price for the Company's common stock
was $26.88 per share.

         Holders.  As of February 29, 2000,  the number of record holders of the
Company's common stock was 278.  Management  believes,  after inquiry,  that the
number of beneficial owners of the Company's common stock is in excess of 1,600.

         Dividends.  The Company has paid cash dividends to  stockholders  every
year since 1940. Annual dividends of $0.16 per share were paid quarterly in each
of the years 1987 through 1996. The Company increased its quarterly dividend 25%
to $.05 per share  effective with the quarterly  dividend paid in February 1997.
Dividends paid totaled $2,193,000 in 1999 and $2,190,000 in 1998.

                                      -21-
<PAGE>

ITEM 6.  SELECTED CONSOLIDATED FINANCIAL DATA

         The following table sets forth selected consolidated financial data for
the Company as of the dates and for the periods  indicated.  The financial  data
for each of the five years  ended  December  31,  1999,  were  derived  from the
Consolidated  Financial  Statements of the Company. The following data should be
read in  conjunction  with  "Management's  Discussion  and Analysis of Financial
Condition  and Results of  Operations,"  which  includes a discussion of factors
materially  affecting the  comparability  of the information  presented,  and in
conjunction with the Company's  financial  statements included elsewhere in this
report.
<TABLE>
<CAPTION>
                                                                              Years Ended December 31,
                                                                              ------------------------
                                                              1999         1998         1997         1996          1995
                                                              ----         ----         ----         ----          ----
                                                                        (In thousands, except per share data)
<S>                                                       <C>          <C>           <C>          <C>          <C>
Income Statement Data:
Operating revenues:
     Oil production                                       $  22,906    $  16,545     $  22,415    $  22,100    $  17,090
     Gas production                                          49,588       54,103        53,349       34,674       19,479
     Gain on sale of Russian joint venture                    -            -             9,671        -            -
     Gain(loss) on sale of proved properties                    (55)       7,685         4,220        2,254        1,292
     Other revenues                                           1,582          411         1,391          523          789
                                                          --------------------------------------------------------------
Total operating revenues                                     74,021       78,744        91,046       59,551       38,650
                                                          --------------------------------------------------------------
Operating expenses:
     Oil and gas production                                  18,681       17,005        15,258       12,897       10,646
     Depletion, depreciation & amortization                  22,574       24,912        18,366       12,732       10,227
     Impairment of proved properties                          3,982       17,483         5,202          408        2,676
     Exploration                                             11,593       11,705         6,847        8,185        5,073
     Abandonment and impairment of
           unproved properties                                6,616        4,457         2,077        1,469        2,359
     General and administrative                               9,172        7,097         7,645        7,603        5,328
     Writedown of Russian convertible
         receivable                                           -            4,553         -            -            -
     Writedown of investment
         in Summo Minerals                                    -            3,949         -            -            -
     (Income) loss in equity investees                           58          661           325       (1,272)         579
     Other                                                    1,744          141           281           78          152
                                                          --------------------------------------------------------------
Total operating expenses                                     74,420       91,963        56,001       42,100       37,040
                                                          --------------------------------------------------------------
Income (loss) from operations                                  (399)     (13,219)       35,045       17,451        1,610
     Non-operating (expense) income                              75       (1,027)          (99)      (1,951)        (896)
     Income tax (expense) benefit                               406        5,415       (12,325)      (5,333)         723
                                                          --------------------------------------------------------------
Income (loss) from continuing operations                         82       (8,831)       22,621       10,167        1,437
Gain on sale of discontinued operations,
     net of income taxes                                          -           34           488          159          306
                                                          --------------------------------------------------------------
Net income (loss)                                         $      82    $  (8,797)    $  23,109    $  10,326    $   1,743
                                                          ==============================================================
</TABLE>

                                      -22-
<PAGE>
<TABLE>
<CAPTION>
                                                                                Years Ended December 31,
                                                                                ------------------------
                                                               1999         1998          1997         1996         1995
                                                               ----         ----          ----         ----         ----
                                                                          (In thousands, except per share data)
<S>                                                         <C>           <C>          <C>          <C>          <C>
Income Statement Data (continued):
Basic net income (loss) per common share:
     Income (loss) from continuing operations               $   0.01      $ (0.81)     $   2.13     $   1.16     $   0.17
     Gain on sale of discontinued operations                       -            -          0.05         0.02         0.03
                                                            -------------------------------------------------------------
Basic net income (loss) per share                           $   0.01      $ (0.81)     $   2.18     $   1.18     $   0.20
                                                            =============================================================
Diluted net income (loss) per common share:

     Income (loss) from continuing operations               $   0.01      $ (0.81)     $   2.10     $   1.15     $   0.17
     Gain on sale of discontinued operations                       -            -          0.05         0.02         0.03
                                                            -------------------------------------------------------------
Diluted net income (loss) per share                         $   0.01      $ (0.81)     $   2.15     $   1.17     $   0.20
                                                            =============================================================
Cash dividends per share                                    $   0.20      $  0.20      $   0.20     $  0.16      $   0.16
Basic weighted average common shares
     outstanding                                              11,099        10,937       10,620        8,759        8,760
Diluted weighted average common shares
     outstanding                                              11,164        10,937       10,753        8,826        8,801

Balance Sheet Data (end of period):

Working capital                                             $ 13,439      $  9,785     $  9,618     $ 13,926     $  3,102
Net property and equipment                                   180,665       143,825      157,481      101,510       71,645
Total assets                                                 230,438       184,497      212,135      144,271       96,126
Long-term obligations                                         13,000        19,398       22,607       43,589       19,602
Total stockholders' equity                                   188,772       134,742      147,932       75,160       66,282

Other Data:
EBITDA (1)                                                  $ 22,175      $ 11,693     $ 53,411     $ 30,183     $ 11,837
Net cash provided by operating activities                     40,755        45,386       43,111       24,205       17,713
Capital and exploration expenditures, cash
     and noncash                                              91,184        57,855       89,213       52,601       32,307
</TABLE>
[FN]
- ---------
(1)      EBITDA is defined  as  earnings  before  interest  income and  expense,
         income taxes, depreciation,  depletion,  amortization, and gain on sale
         of discontinued operations. EBITDA is a financial measure commonly used
         for the Company's industry and should not be considered in isolation or
         as a  substitute  for net  income,  cash  flow  provided  by  operating
         activities  or other  income or cash flow data  prepared in  accordance
         with  generally  accepted  accounting  principles  or as a measure of a
         company's profitability or liquidity. Because EBITDA excludes some, but
         not all, items that affect net income and may vary among companies, the
         EBITDA  presented  above  may not be  comparable  to  similarly  titled
         measures of other companies.
</FN>
                                      -23-
<PAGE>

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

                                    Overview

         St. Mary Land & Exploration  Company ("St.  Mary" or the "Company") was
founded in 1908 and  incorporated in Delaware in 1915. The Company is engaged in
the  exploration,  development,  acquisition  and  production of natural gas and
crude oil with  operations  focused in five core  operating  areas in the United
States: the Mid-Continent  region;  the ArkLaTex region;  onshore Gulf Coast and
offshore Gulf of Mexico; the Williston Basin; and the Permian Basin.

         The  Company's  objective  is to build value per share by focusing  its
resources within selected basins in the United States where management  believes
established  acreage  positions,   long-standing   industry   relationships  and
specialized   geotechnical  and  engineering  expertise  provide  a  significant
competitive  advantage.   The  Company's  ongoing  development  and  exploration
programs are complemented by less predictable opportunities to acquire producing
properties having significant  exploitation  potential,  to monetize assets at a
premium and to repurchase shares of its common stock at attractive values.

         Internal  exploration,  drilling and production  personnel  conduct the
Company's  activities in the  Mid-Continent,  ArkLaTex,  Gulf Coast and offshore
Gulf of Mexico regions and in the Williston and Permian Basins. Prior to June 1,
1999,  activities  in  the  Williston  Basin  were  conducted  through  Panterra
Petroleum  ("Panterra"),  a  general  partnership  managed  by  Nance  Petroleum
Corporation  ("Nance").  The Company  owned a 74% interest in Panterra and Nance
owned the remaining 26%. On June 1, 1999, the Company closed on the  acquisition
of Nance,  and all of the Company's  activities  in the Williston  Basin are now
conducted through Nance as a wholly owned subsidiary of the Company. In 1999 the
Company's  activities in the Permian Basin were primarily  contracted through an
oil and gas property management company with extensive  experience in the basin.
After December 31, 1999, Nance personnel assumed this responsibility.

         The Company's presence in south Louisiana includes active management of
its fee lands from which royalty  income is derived.  Royalty  revenues from the
fee lands were $3.1,  $6.9, and $8.8 million for the years 1999, 1998, and 1997,
respectively.  St. Mary has  encouraged  development  drilling  by its  lessees,
facilitated  the  origination of new prospects on acreage not held by production
and stimulated exploration interest in deeper,  untested horizons. The Company's
discovery  on its fee  lands at  South  Horseshoe  Bayou  in early  1997 and the
successful confirmation well in early 1998 proved that significant accumulations
of gas are sourced and trapped at depths below  16,000 feet.  In August 1998 one
of the wells in the South Horseshoe Bayou project experienced shut-in production
due to  mechanical  problems.  These  mechanical  problems and  premature  water
encroachment  caused the Company to reduce the project's proved reserves by 38.8
BCFE.  The  Company's  1999  test  well  drilled  at South  Horseshoe  Bayou was
unsuccessful  and resulted in a dry hole in February  2000. All of the Company's
costs  relating to this prospect at December 31, 1999 have been expensed  except
for  costs  associated  with  the #2  well  which  is  currently  producing.  An
evaluation is currently  underway to determine if a sidetrack  will be attempted
on the #3 well in 2000.

         St.  Mary seeks to make  selective  niche  acquisitions  of oil and gas
properties that complement its existing operations, offer economies of scale and
provide further  development and exploration  opportunities based on proprietary
geologic  concepts.  Management  believes  that the  Company's  focus on smaller
negotiated transactions where it has specialized geologic knowledge or operating
experience  has enabled it to acquire  attractively-priced  and  under-exploited
properties.  In addition, the Company will pursue corporate acquisitions if they
can be made on an accretive basis.

                                      -24-
<PAGE>

         The results of operations  include several property  acquisitions  made
during recent years and their  subsequent  further  development  by the Company.
From 1996 to 1999 the Company has made a series of  acquisitions  totaling $15.9
million that formed a new core area of focus in the Permian  Basin of New Mexico
and west Texas. In late 1998 St. Mary, through Panterra,  acquired the interests
of Texaco,  Inc. in several fields in the Williston  Basin for $2.1 million.  In
1997  the  Company  acquired  an  85%  working  interest  in  certain  Louisiana
properties  of Henry  Production  Company for $3.9  million;  the  remaining 15%
working  interest in these  properties  was acquired in early 1999.  In 1999 St.
Mary acquired additional interests in the West Cameron Block 39 property located
in the Gulf of Mexico and in various other  properties in Louisiana and Oklahoma
totaling $3.7 million.

         On June 1, 1999, the Company acquired Nance and Quanterra Alpha Limited
Partnership  for 259,494 shares of St. Mary common stock valued at $3.1 million,
the assumption of $3.2 million in debt and  transaction  costs of $56,000.  This
acquisition was accounted for as a purchase and included Nance's 26% interest in
Panterra that the Company did not previously own. Through the remainder of 1999,
Nance acquired various Williston Basin properties for $948,000.

         On December 17, 1999, in a transaction accounted for as a purchase, the
Company  acquired King Ranch Energy,  Inc ("KRE") for 2,666,187 shares of common
stock valued at $52.8 million and transaction  costs of $2.3 million.  After the
acquisition,  KRE's name was changed to St. Mary Energy  Company  ("SMEC").  The
acquired  properties are located primarily in the Gulf of Mexico and the onshore
Gulf Coast.

         The Company  reviews its  producing  properties  for  impairments  when
events or changes in circumstances indicate that an impairment in value may have
occurred.  The  impairment  test compares the expected  undiscounted  future net
revenues on a field-by-field basis with the related net capitalized costs at the
end of each  period.  When the net  capitalized  costs  exceed the  undiscounted
future net  revenues,  the cost of the  property is written  down to fair value,
which  is  determined  using  future  net  revenues  discounted  at 15%  for the
producing property. Future net revenues are estimated using escalated prices and
include the  estimated  effects of the Company's  hedging  contracts in place at
December 31, 1999. This calculation may not reflect engineering data used by the
Company in evaluating property acquisitions.

         The Company  pursues  opportunities  to monetize  selected  assets at a
premium  and as part of its  continuing  strategy to focus and  rationalize  its
operations.  In late 1998 St. Mary sold a package of non-strategic properties in
Oklahoma to ONEOK  Resources  Company  ("ONEOK")  for $22.2 million and sold its
remaining  minor  interests  in Canada for $1.2  million,  realizing  a combined
pre-tax gain of $7.7 million.

         St.  Mary  has  one  principal   equity   investment,   Summo  Minerals
Corporation ("Summo"). In June 1999 the Company's ownership in Summo was reduced
from 37% to 18%,  and the  Company  now uses the cost method to account for this
investment.  Prior to this reduction in ownership the Company  accounted for its
investment in Summo under the equity method and included its share of the income
or loss from this entity in its consolidated results of operations.  The Company
recorded  $58,000 of equity in Summo's  losses in 1999  through  the date of the
ownership reduction. In January 2000 Summo issued 1,016,594 shares of its common
stock to the  Company as payment of interest on the  Company's  note  receivable
from Summo.  On issuance  of these  shares,  the  Company's  ownership  in Summo
increased to 19%.

                                      -25-
<PAGE>

         In  August  1999 the  Company  sold its stock in  Khanty  Mansiysk  Oil
Corporation  ("KMOC") for $1.9 million and realized a $150,000 gain. The Company
continues  to market its  receivable  from KMOC and in February  2000 elected to
convert the receivable into KMOC stock.

         In June 1998 the  Company's  stockholders  approved  an increase in the
number of  authorized  shares of the Company's  common stock from  15,000,000 to
50,000,000  shares.  This  change  positioned  the  Company to use its stock for
future acquisitions.

         Box Church Gas gathering, LLC and Roswell, LLC are small majority owned
support  entities  that  service  the  ArkLaTex  region and the  Permian  Basin,
respectively.  The activities of these entities are fully consolidated,  and the
minority  interest is recorded.  Minority  interest is the ownership  portion of
these two entities held by parties other than the Company.

         At  the  end  of  1998  crude  oil  producers  were   confronted   with
historically  low prices and a possibly  weak outlook for 1999 based upon future
prices at the time.  Natural gas  producers  were  experiencing  relative  price
stability.  During  1999 crude oil  availability  changed  and  prices  began to
increase.  As future prices  increased,  oil producers who were concerned  about
their  experiences in 1998 began hedging their  remaining 1999  production.  Oil
prices continued to increase,  and at the end of 1999 some regions of the United
States were  experiencing  two-fold  price  increases  over the end of 1998. Oil
producers  who hedged  significant  quantities  of oil using  early 1999  future
pricing  recognized hedging losses during 1999. Gas prices as experienced by the
Company continue to remain relatively stable.

     This Annual Report on Form 10-K  includes  certain  statements  that may be
deemed to be  "forward-looking  statements" within the meaning of Section 27A of
the  Securities  Act of 1933 and Section 21E of the  Securities  Exchange Act of
1934. All  statements,  other than statements of historical  facts,  included in
this Form 10-K that address activities,  events or developments that the Company
expects, believes or anticipates will or may occur in the future, including such
matters as future capital,  development and exploration  expenditures (including
the amount and nature thereof),  drilling of wells, reserve estimates (including
estimates of future net revenues  associated  with such reserves and the present
value of such future net  revenues),  future oil and gas  production  estimates,
repayment of debt,  business  strategies,  expansion and growth of the Company's
operations,  Year 2000  readiness  and other such  matters  are  forward-looking
statements.  These statements are based on certain assumptions and analyses made
by the  Company in light of its  experience  and its  perception  of  historical
trends,  current  conditions,  expected future developments and other factors it
believes are appropriate in the circumstances.  Such statements are subject to a
number of  assumptions,  risks and  uncertainties,  including  such  factors  as
uncertainties in cash flow,  expected merger benefits,  the volatility and level
of oil and natural gas prices, production rates and reserve replacement, reserve
estimates, drilling and operating risks, competition,  litigation, environmental
matters, the potential impact of government regulations, and other such matters,
many of which are beyond the control of the Company.  Readers are cautioned that
our forward-looking statements are not guarantees of future performance and that
actual results or  developments  may differ  materially  from those expressed or
implied in the forward-looking statements.


                                      -26-
<PAGE>

Results of Operations

The  following  table  sets  forth  selected  operating  data  for  the  periods
indicated:
<TABLE>
<CAPTION>
                                                               Years Ended December 31,
                                                               ------------------------
                                                             1999         1998        1997
                                                             ----         ----        ----
                                                         (In thousands, except per MCFE data)
<S>                                                        <C>          <C>         <C>
Oil and gas production revenues:
   Working interests.................................      $69,408      $63,771     $66,957
   Louisiana royalties...............................        3,086        6,877       8,807
                                                           ---------------------------------
      Total..........................................      $72,494      $70,648     $75,764
                                                           =================================
Net production:
   Oil (MBbls).......................................        1,383        1,275       1,188
   Gas (MMcf)........................................       22,805       25,440      22,900
                                                           ---------------------------------
   MMCFE.............................................       31,103       33,090      30,028
                                                           ---------------------------------
Average sales price (1):

   Oil (per Bbl).....................................      $ 16.56      $ 12.98     $ 18.87
   Gas (per Mcf).....................................      $  2.17      $  2.13     $  2.33

Oil and gas production costs:
   Lease operating expenses..........................      $13,641      $12,929     $10,463
   Production taxes..................................        5,040        4,076       4,795
                                                           ---------------------------------
      Total..........................................      $18,681      $17,005     $15,258
                                                           =================================
Additional per MCFE data:
   Sales price.......................................      $  2.33      $  2.13     $  2.52
   Lease operating expenses..........................         (.44)        (.39)       (.35)
   Production taxes..................................         (.16)        (.12)       (.16)
                                                           ---------------------------------
      Operating margin...............................      $  1.73      $  1.62     $  2.01
                                                           =================================
   Depletion, depreciation and amortization..........      $   .73      $   .75     $   .61
   Impairment of proved properties...................      $   .13      $   .53     $   .17
   General and administrative........................      $   .29      $   .22     $   .26
</TABLE>
[FN]
- ---------
(1)      Includes the effects of the Company's hedging activities.
</FN>

         Oil and Gas  Production  Revenues.  Oil  and  gas  production  revenues
increased $1.9 million, or 3% to $72.5 million in 1999 compared to $70.6 million
in  1998.  Oil  production  volumes  increased  8% and  gas  production  volumes
decreased 10% in 1999 compared to 1998. Average net daily production declined to
85.2  MMCFE  in 1999  compared  to 90.6  MMCFE  in  1998.  The  increase  in oil
production occurred as a result of the Nance acquisition,  production  increases
at the Parkway  Delaware Unit waterflood and the drilling of successful wells in
Montana.  Gas production  decreased as a result of the loss of production at the
South  Horseshoe  Bayou  Field and the sale of certain  Oklahoma  properties  in
December 1998. This decrease reduced the average daily production.

         The average  realized  oil price for 1999  increased  28% to $16.56 per
Bbl, while average realized gas prices increased 2% to $2.17 per Mcf, from their
respective  1998  levels.  The  Company  hedged  approximately  41.4% of its oil
production  for 1999 or 572  MBbls at an  average  NYMEX  price of  $17.19.  The
Company  experienced a $2.0 million decrease in oil revenue or $1.45 per Bbl for
1999 on these contracts compared to a $435,000 increase or $.34 per Bbl in 1998.
The Company also hedged 56.2% of its 1999 gas production or 14,085,000  MMBtu at
an average index price of $2.19. The Company  experienced a $558,000 decrease in
gas revenues or $.02 per Mcf for 1999 from these hedge  contracts  compared to a
$1.4 million increase in gas revenues or $.06 per Mcf in 1998.

                                      -27-
<PAGE>

         Oil and gas production  revenues decreased $5.1 million, or 7% to $70.6
million in 1998  compared  to $75.8  million  in 1997.  Oil  production  volumes
increased 7% and gas production  volumes increased 11% in 1998 compared to 1997.
Average net daily  production  reached 90.6 MMCFE in 1998 compared to 82.2 MMCFE
in 1997.  This  production  increase  resulted from new properties  acquired and
drilled during 1998 and late 1997. Major  acquisitions  affecting the production
increase included the Southwest  Mayfield  properties in Oklahoma purchased from
Conoco and the Louisiana  properties  purchased from Henry Production Company in
1997,  the  acquisition  of certain  producing  properties  in Texas from Stroud
Exploration  in  1998,  and the  additional  interests  purchased  in the  Siete
properties  during  1997 and  1998.  Successful  drilling  results  in the South
Horseshoe  Bayou and  Haynesville  fields in Louisiana,  the Box Church Field in
Texas and the Company's  Oklahoma  drilling program also contributed to the 1998
production increase. These production increases were only slightly offset by the
sale of certain Oklahoma properties to ONEOK Resources Company in late 1998.

         Oil and Gas Production  Costs.  Oil and gas production costs consist of
lease operating  expense ("LOE") and production  taxes.  Total  production costs
increased  $1.7  million,  or 10% in 1999 to $18.7  million  compared with $17.0
million in 1998, while total oil and gas production costs per MCFE increased 17%
to $.60 in 1999 compared with $.51 in 1998. A $396,000  increase in LOE workover
costs and a $968,000  increase in LOE relating to the Nance and KRE acquisitions
were  offset by a  $591,000  decrease  in LOE at South  Horseshoe  Bayou and the
December 1998 sale of producing  properties in Oklahoma.  A $705,000 increase in
production  taxes was the  result  of  higher  prices  for oil  production.  The
increase in the per MCFE amount is also due to a 10% decrease in gas  production
volumes  caused by a  reduction  in  volumes  at South  Horseshoe  Bayou and the
December  1998  sale  of  producing  properties  in  Oklahoma  which  had  lower
production costs per MCFE.

         Total production costs increased $1.7 million,  or 11% in 1998 to $17.0
million  compared with $15.3 million in 1997. Total oil and gas production costs
per MCFE  increased 1% to $.51 in 1998 compared to $.51 per MCFE in 1997. A $2.4
million  increase in LOE related to a  corresponding  increase in production for
1998 which was described above and a $1.0 million increase in non-recurring  LOE
resulting from increased  workover  activity.  A $700,000 decrease in production
taxes was the result of the  decrease in oil and gas revenues in 1998 on which a
portion of production taxes were based.

         Depreciation,  Depletion,  Amortization  and Impairment.  Depreciation,
depletion and  amortization  expense  ("DD&A")  decreased  $2.3 million or 9% to
$22.6 million in 1999 compared with $24.9 million in 1998. This decrease was due
to the December 1998 sale of producing properties in Oklahoma.  DD&A expense per
MCFE  decreased  4% to $.73 in 1999  compared  to $.75 in 1998 due to low prices
that  affected the Company's oil and gas reserves and net book value at December
31, 1998 and the subsequent recovery of prices which increased the Company's oil
and gas  reserves  during  1999.  This  effect was offset  during  1999 by a 10%
reduction in gas production  caused by decreased  production at South  Horseshoe
Bayou,  the December  1998 sale of producing  properties  in Oklahoma with lower
DD&A  expense  per MCFE and  decreased  royalty  production  from the fee lands.
Impairment  of proved oil and gas  properties  decreased  $13.5  million to $4.0
million in 1999 compared with $17.5 million in 1998.  The decrease was caused by
marginal wells drilled in Oklahoma and Louisiana in 1998, the adverse effects of
low oil  prices  in 1998 and the  Company's  unsuccessful  1998 deep test at its
Atchafalaya  Bay prospect.  Of the impairments  caused by reserve  reductions in
under-performing  properties  in  1999,  $2.6  million  related  to  the  Larose
prospect,  $246,000  related to the Greensburg  prospect and $264,000 related to
several other prospects in Louisiana.  A total of $734,000 of impairment related
to nine prospects in Oklahoma.

                                      -28-
<PAGE>

         DD&A  increased  $6.5 million or 36% to $24.9  million in 1998 compared
with $18.4 million in 1997.  This increase  resulted from  increased  production
volumes of new properties acquired and drilled in 1998 and late 1997,  including
the Southwest Mayfield  properties acquired from Conoco in the fourth quarter of
1997.  Decreases  in reserve  volumes  caused by the  adverse  impact of low oil
prices in the Williston  Basin and mechanical  problems at South Horseshoe Bayou
also  contributed to the DD&A  increase.  DD&A expense per MCFE increased 23% to
$.75 in 1998  compared to $.61 in 1997 due to higher  drilling  and  acquisition
costs per MCFE and the factors mentioned above. Impairment of proved oil and gas
properties  increased  $12.3 million to $17.5 million in 1998 compared with $5.2
million in 1997. Those charges resulting from a decline in the Company's oil and
gas reserve value due to lower prices in predominantly oil producing fields were
$1.4 million in west Texas and $600,000 in the  Williston  Basin of North Dakota
and  Montana.   Other  charges  were  due  to  reserve   volume   reductions  in
under-performing  properties. Of these, $8.9 million and $1.2 million related to
the Atchafalaya and Bayou D'Arbonne prospects,  respectively, in Louisiana, $1.2
million related to the Young North prospect in New Mexico,  $700,000  related to
the  Kirvin/Mann  North  prospect in Texas and $1.0  million  related to several
prospects in  Oklahoma.  The  drilling of two  marginal  wells in Oklahoma  also
resulted in impairments of $600,000 in 1998.

         Abandonment  and  impairment  of  unproved  properties  increased  $2.1
million or 48% to $6.6  million in 1999  compared to $4.5 million in 1998 due to
the  Company's  impairment  of its  remaining  costs at South  Horseshoe  Bayou.
Abandonment and impairment of unproved properties increased $2.4 million or 115%
to $4.5  million in 1998  compared  to $2.4  million  in 1997 due to  additional
impairments taken during 1998.

         Exploration.  Exploration  expense  decreased  $112,000  or 1% to $11.6
million for 1999 compared  with $11.7 million in 1998.  Decreases of $565,000 in
geological and geophysical expenses and $600,000 in delay rentals were offset by
increases of $689,000 of dry hole expense and $253,000 of exploration  overhead.
Exploration  expense  increased  $4.9  million or 71% to $11.7  million for 1998
compared  with $6.8 million in 1997 due to the drilling of ten  exploratory  dry
holes  during  1998 in the  Mid-Continent  and Gulf Coast  regions,  compared to
better  exploratory  drilling  results in 1997. The payment of $795,000 in delay
rentals  for the  Company's  Atchafalaya  Bay  prospect  area  during  1998 also
contributed to the increase in exploration expense.

         General  and  Administrative.   General  and  administrative   expenses
increased  $2.1 million or 29% to $9.2 million in 1999  compared to $7.1 million
in 1998 due to a $1.9  million  increase in  compensation  and  benefit  related
expenses   including  a  $477,000   increase  related  to  the  Company's  Stock
Appreciation  Rights ("SAR") plan. SAR plan expense will decrease in 2000 as the
Company  terminated awards under this plan effective  November 1996. General and
administrative  expenses  decreased $548,000 in 1998 compared to $7.6 million in
1997 due to a $358,000  reduction of expenses  related to the Company's SAR plan
and a $259,000 reduction in charitable  contributions which are based on pre-tax
income.

         Minority Interest and Other Operating Expenses.  This expense increased
$1.6 million to $1.7 million from $141,000 in 1998 due to increased  activity in
St. Mary's pending  litigation  that seeks to recover  damages from the drilling
contractor  in  connection  with the St. Mary Land &  Exploration  No. 1 well at
South Horseshoe  Bayou and a $118,000  adjustment for minority  interest.  Other
operating  expenses  decreased $140,000 or 50% in 1998 compared with 1997 due to
decreased activity in the pending South Horseshoe Bayou litigation.

         Equity in Loss of Summo Minerals Corporation. The Company accounted for
its  investment  in Summo  under the  equity  method and  included  its share of
Summo's  losses in its results of operations  until the Company's  ownership was
reduced to 18% from 37% in June 1999. Consequently, the Company now accounts for
its  investment in Summo under the cost method.  Equity in the net loss of Summo
was $58,000 in 1999,  $661,000 in 1998, and $526,000 in 1997. The losses in 1998
and 1997 are due to general  and  administrative  expenses  associated  with the
expansion of Summo's  Denver office and with the appeals  process for permitting
of the Lisbon Valley Copper Project. The Company's ownership in Summo was 37% in
1998 and 1997.

                                      -29-
<PAGE>

         Non-Operating Income and Expense.  Net non-operating  expense decreased
$1.1  million to $75,000 of net income in 1999  compared to $1.0  million of net
expense  in 1998 due to  decreased  interest  expense  attributable  to  reduced
long-term debt during 1999, and  recognition of interest  income from loans made
to Summo. Debt was decreased in 1999 with proceeds from the sale of the Oklahoma
properties in late 1998. Net non-operating  expense  increased  $928,000 to $1.0
million in 1998 due to interest expense for increased borrowings in 1998 to fund
capital  expenditures,  and due to lower  borrowings in 1997 resulting from cash
received from the sale of common stock.

         Income Taxes.  Income taxes provided a net benefit of $406,000 for 1999
resulting in an effective  tax rate of 125%.  The  effective  rate  reflects the
effect of the book net operating  loss before tax and the  compounded  effect of
alternative fuel credits allowed under Internal Revenue Code Section 29 incurred
in years when the Company  reports a pre-tax  book loss.  Income tax benefit was
$5.4  million  for 1998 and  income  tax  expense  was  $12.3  million  in 1997,
resulting  in  effective  tax rates of 38% and 35%,  respectively.  The  expense
amount in 1997  reflects  higher net income from  continuing  operations  before
income  taxes  compared  to  the  subsequent  year,   offset  partially  by  the
utilization of Section 29 tax credits.

         Net  Income(Loss).  Net income for 1999 was  $82,000  compared to a net
loss of $8.8  million for 1998.  A 2% increase in gas prices,  a 28% increase in
oil prices and an 8% increase in oil production volumes were partially offset by
a 10%  decrease in gas  production  volumes for the year and  resulted in a $1.9
million or 3% increase in oil and gas production  revenues.  The  combination of
impairments  of proved  properties  and DD&A  decreased  $15.8 million from 1998
amounts  and were  partially  offset by a $1.7  million  increase in oil and gas
production costs, a $2.2 million increase in unproved property impairments,  and
a $2.1 million increase in general and administrative  expenses.  A $1.2 million
increase in other revenues and a $1.1 million decrease in  non-operating  income
and  expenses  were  partially  offset by a $1.6  million  increase  in minority
interest  and other  expense.  Income tax benefit  decreased  by $5.0 million in
1999. Activity in 1998 not affecting net income in 1999 included $7.7 million in
gains on sales of proved properties,  a $4.6 million writedown of the receivable
from  KMOC and $4.6  million  in  losses  related  to the  Company's  investment
activity in Summo Minerals.

         Net loss for 1998 was $8.8  million  compared  to net  income  of $23.1
million for 1997. A 9% reduction in gas prices and a 31% reduction in oil prices
were only partially offset by an 11% increase in gas production volumes and a 7%
increase in oil production volumes for the year. This resulted in a $5.1 million
or 7% reduction  in oil and gas  production  revenues.  Gains on sales of proved
properties  of $7.7  million were offset by  impairments  of proved and unproved
properties  and increased  DD&A expense  resulting  from lower  reserve  values;
writedowns of the Russian convertible receivable and the Company's investment in
Summo Minerals;  and increased exploration expense brought about by unsuccessful
exploration projects.

         The Company  also  realized  gains net of income taxes from the sale of
discontinued real estate of $34,000 in 1998, and $488,000 in 1997.

Liquidity and Capital Resources

         The  Company's  primary  sources of liquidity  are the cash provided by
operating  activities,  debt financing,  sales of  non-strategic  properties and
access to the capital markets. The Company's cash needs are for the acquisition,
exploration  and  development  of oil and gas  properties and for the payment of
debt  obligations,   trade  payables  and  stockholder  dividends.  The  Company
generally  finances its  exploration  and  development  programs from internally
generated  cash flow,  bank debt and cash and cash  equivalents on hand. In 1997
the Company financed a large portion of its exploration and development programs
with the  proceeds  from its  secondary  public  offering of common  stock.  The
Company  continually  reviews its capital expenditure budget based on changes in
cash flow and other factors.

                                      -30-
<PAGE>

         Cash Flow.  The  Company's  net cash  provided by operating  activities
decreased $4.6 million or 10% to $40.8 million in 1999 compared to $45.4 million
in 1998. The decrease was caused by a $4.6 million  decrease in accounts payable
related to oil and gas production costs and general and administrative  expense.
The $1.9 million  increase in oil and gas revenues was offset by a corresponding
increase in accrued oil and gas receivables. A $1.6 million increase in minority
interest and other operating  expense was offset by a $764,000 increase in other
revenues and a $1.1 million decrease in cash paid for interest expense. Net cash
provided by operating  activities increased 5% to $45.4 million in 1998 compared
to $43.1  million  in 1997.  A $9.8  million  decrease  in  accounts  receivable
resulting from lower oil and gas prices and reduced drilling activity and a $2.4
million increase in unproved property  impairments were offset by a $5.1 million
decrease in oil and gas revenue, a $4.3 million increase in prepaid expenses and
a $400,000 increase in cash paid for interest expense.

         Exploratory  dry hole costs are  included in cash flows from  investing
activities even though these costs are expensed as incurred.  If exploratory dry
hole costs had been included in operating  cash flows,  the net cash provided by
operating  activities  would have been $35.8 million,  $40.5 million,  and $41.5
million, in 1999, 1998, and 1997, respectively.

         The  Company  made cash  payments  of  approximately  $333,000 in 1999,
$363,000  in 1998  and  $1.6  million  in 1997 in  satisfaction  of  liabilities
previously accrued under the SAR plan.

         Net cash used in investing activities decreased $14.8 million or 40% in
1999 to $22.2 million  compared to $37.0 million in 1998. The decrease is due to
reduction in capital  expenditures,  $2.1 million  received from the sale of the
subsidiary that held the KMOC stock, $2.6 million from the Company's  investment
in Summo  and  $12.7  million  in cash  received  as a result  of the  Company's
purchase  of Nance  and KRE  offset  by a $20.9  million  decrease  in  proceeds
received from property  sales.  Nance and KRE were acquired with St. Mary common
stock.  Consequently,  the value of the common stock issued is not  reflected in
net cash used in investing activities. Total 1999 capital expenditures for cash,
including acquisitions of oil and gas properties, decreased $18.3 million or 31%
to $40.3  million in 1999 compared to $58.6 million in 1998 due to a decrease in
drilling activity in 1999.

         Net cash used in investing activities decreased $30.5 million or 45% in
1998 to $37.0 million  compared to $67.5 million in 1997. The decrease is due to
a $10.1  million  increase in proceeds  from sales of oil and gas  properties in
1998, including the sale of the Russian joint venture in 1997, and a decrease of
$23.1 million in cash paid for  acquisitions  of oil and gas properties in 1998.
Total  1998  capital  expenditures,   including  acquisitions  of  oil  and  gas
properties,  decreased $22.9 million or 28% to $58.6 million in 1998 compared to
$81.5 million in 1997 due to a $23.1 million decrease in acquisitions in 1998.

         If exploratory dry hole costs had been included in operating cash flows
rather than in investing cash flows, net cash used in investing activities would
have been $17.2  million,  $32.1 million,  and $65.8 million in 1999,  1998, and
1997, respectively.

         The Company was able to deposit the majority of the  proceeds  from the
sales of oil and gas properties in 1997 into  qualified tax escrow  accounts and
apply these funds to  acquisitions  of oil and gas properties in 1997,  allowing
tax-free exchanges of these properties for income tax purposes.  Portions of the
proceeds  from  sales of oil and gas  properties  in 1998 were also  applied  to
acquisitions  of oil and gas properties in 1999 under tax-free  exchanges.  In a
tax-free  exchange of properties the tax basis of the sold property carries over
to the acquired property for tax purposes.  Gains or losses for tax purposes are
recognized by amortization of the lower tax basis of the property throughout its
remaining life or when the acquired property is sold or abandoned.

         Net cash used in financing  activities  increased $4.4 million to $12.1
million in 1999 compared to $7.7 million in 1998.  The increase is due to a $6.6
million  decrease in long-term debt partially  offset by a $1.9 million decrease
in stock repurchase payments.

                                      -31-
<PAGE>

         Net cash provided by (used in)  financing  activities  decreased  $35.8
million to net cash used of $7.7 million in 1998  compared to net cash  provided
of $28.1  million in 1997.  The  decrease in cash  provided was due to the $51.2
million  received in 1997 from the  secondary  public  offering of common  stock
compared to $173,000  from  employee  stock  purchases in 1998.  This change was
partially  offset by a $3.2 million  decrease in long-term debt in 1998 compared
to a $21.0 million decrease in 1997. The Company also spent $2.5 million in 1998
to repurchase shares of its own common stock.

         The  Company  had $14.2  million in cash and cash  equivalents  and had
working  capital of $13.4  million as of  December  31,  1999  compared  to $7.8
million in cash and cash  equivalents  and working capital of $9.8 million as of
December 31, 1998. The net change in working capital results from a $6.4 million
increase in cash and cash  equivalents  and a $6.0 million  increase in accounts
receivable,  prepaid expenses and refundable  income taxes that was offset by an
$8.8 million increase in accounts payable and accrued liabilities.

         Credit Facility. On June 30, 1998, the Company entered into a long-term
revolving  credit  agreement with a maximum loan amount of $200.0  million.  The
lender may periodically re-determine the aggregate borrowing base depending upon
the value of the Company's oil and gas properties and other assets.  In May 1999
the  borrowing  base was reduced $25 million by the lender to $80.0 million as a
result of reduced  reserve  pricing and the write-down of South  Horseshoe Bayou
reserves.  The accepted  borrowing  base was $40.0 million at December 31, 1999.
The credit  agreement has a maturity  date of December 31, 2005,  and includes a
revolving  period that matures on December  31,  2000.  The Company can elect to
allocate up to 50% of available  borrowings  to a short-term  tranche due in 364
days. The Company must comply with certain  covenants  including  maintenance of
stockholders'  equity  at  a  specified  level  and  limitations  on  additional
indebtedness. As of December 31, 1999 and 1998, $13.0 million and $10.5 million,
respectively,  was outstanding  under this credit  agreement.  These outstanding
balances  accrue  interest at rates  determined by the  Company's  debt to total
capitalization  ratio.  During the revolving  period of the loan,  loan balances
accrue interest at the Company's  option of either (a) the higher of the Federal
Funds  Rate  plus  1/2% or the  prime  rate,  or (b)  LIBOR  plus  1/2% when the
Company's  debt to total  capitalization  is less than 30%,  up to a maximum  of
either (a) the higher of the Federal Funds Rate plus 5/8% or the prime rate plus
1/8%, or (b) LIBOR plus 1-1/4% when the Company's  debt to total  capitalization
is equal to or greater  than 50%. At December  31,  1999 the  Company's  debt to
capitalization ratio as defined under the credit agreement was 6.4%.

         Panterra,  in  which  the  Company  owned  a  74%  general  partnership
interest,  maintained a separate credit facility with a $21.0 million  borrowing
base as of  December  31,  1998.  Outstanding  borrowings  under  this  separate
facility were $12.0 million as of December 31, 1998.  St. Mary's  portion of the
December 31, 1998 balance was $8.9 million.  The Company used its primary credit
facility  to retire the balance due on the  Panterra  credit  facility in August
1999,  and the $21  million  borrowing  base was  transferred  to the  Company's
primary credit facility.

         Common  Stock.  In June 1998 the  Company's  stockholders  approved  an
increase in the number of authorized  shares of the Company's  common stock from
15,000,000  to  50,000,000  shares.  This  change  allows  the  Company  to make
acquisitions without the use of its cash or credit facility.

         In August 1998 the  Company's  Board of  Directors  authorized  a stock
repurchase  program  whereby St. Mary may purchase  from  time-to-time,  in open
market  transactions or negotiated  sales, up to 1,000,000 of its common shares.
During 1998 and 1999 the Company  repurchased  a total of 182,800  shares of its
common stock under the program for $3.0 million at a  weighted-average  price of
$16.38 per share.  In early 2000 the Company  repurchased  an additional  15,000
shares for $22.99 per share. Management anticipates that additional purchases of
shares by the Company may occur as market  conditions  warrant.  Such  purchases
will be funded with internal cash flow and borrowings under the Company's credit
facility.

                                      -32-
<PAGE>

         Capital and Exploration  Expenditures.  The Company's  expenditures for
exploration and development of oil and gas properties and  acquisitions  are the
primary use of its capital  resources.  The  following  table sets forth certain
information  regarding  the costs  incurred  by the  Company  in its oil and gas
activities during the periods indicated.
<TABLE>
<CAPTION>
                                            Capital and Exploration Expenditures
                                            ------------------------------------
                                                   For the Years Ended
                                                      December 31,
                                                      ------------
                                              1999        1998           1997
                                              ----        ----           ----
                                                     (In thousands)
<S>                                         <C>         <C>           <C>
   Development                              $ 22,166    $ 32,191      $ 39,030
   Exploration:
     Domestic                                 20,809      17,767        15,311
     International                             -           -                16
   Acquisitions:
     Proved                                   33,080       4,204        27,291
     Unproved                                 15,129       3,693         7,565
                                            ----------------------------------
         Total                              $ 91,184    $ 57,855      $ 89,213
                                            ==================================
</TABLE>

         The Company's  total costs incurred in 1999 increased  $33.3 million or
58% compared to 1998.  Proved property  acquisitions  increased $40.8 million in
1999.  In June 1999 the  Company  acquired  Nance and  Quanterra  Alpha  Limited
Partnership in a stock  transaction;  the property  acquisition  amount included
above was $6.1 million. Subsequent to this transaction,  Nance as a wholly owned
subsidiary of the Company  purchased $1.2 million of properties in several small
acquisitions in the Williston  Basin. In December 1999 the Company  acquired KRE
in a stock transaction; the property acquisition amount included above was $33.6
million.  Follow-on  acquisitions relating to interests purchased in the Permian
Basin  amounted  to  $327,000  in 1999.  Certain  properties  were  acquired  in
Louisiana and the Gulf of Mexico for $2.8 million.  Several smaller acquisitions
in other core areas were also completed  during 1999 totaling $1.0 million.  The
Company  spent $46.2  million in 1999 for  unproved  property  acquisitions  and
domestic exploration and development compared to $53.7 million in 1998.

         The Company's  total costs incurred in 1998 decreased  $31.4 million or
35% compared to 1997.  Proved property  acquisitions  decreased $23.1 million in
1998.  In December 1998 Panterra  acquired  certain  properties in the Williston
Basin for $2.8 million, of which the Company's share was $2.1 million. Follow-on
acquisitions  relating  to  interests  purchased  in the  Permian  Basin in 1996
amounted to $1.2 million in 1998, and certain  properties were acquired in Texas
for $510,000.  Several  smaller  acquisitions  were also  completed  during 1998
totaling $390,000. The Company spent $53.7 million in 1998 for unproved property
acquisitions and domestic  exploration and development compared to $61.9 million
in 1997.

         Commitments.  As of December 31, 1999 the Company,  as Operator,  had a
turnkey contract in place with a drilling contractor for the Company's 1999 test
well at South Horseshoe Bayou. St. Mary's  obligation to pay $5.6 million to the
contractor  was  contingent  upon the well  reaching a depth of 16,000 feet.  In
February 2000 the well reached the specified depth, and St. Mary paid the amount
due under the  contract.  The  Company's  net share of the amount paid under the
contract was $2.3 million.

         Outlook. The Company believes that its existing capital resources, cash
flows from  operations  and  available  borrowings  are  sufficient  to meet its
anticipated capital and operating requirements for 2000.

         The Company generally allocates approximately 85% of its capital budget
to low to moderate-risk exploration,  development and niche acquisition programs
in its core  operating  areas.  The remaining  portion of the Company's  capital
budget  is  directed  to  higher-risk,  large  exploration  ideas  that have the
potential to increase the Company's reserves by 25% or more in any single year.

                                      -33-
<PAGE>

         The  Company  anticipates  spending  approximately  $105.0  million for
capital and exploration  expenditures  in 2000 with $60.5 million  allocated for
ongoing  exploration and development in its core operating areas,  $32.5 million
for  niche   acquisitions   of  producing   properties  and  $12.0  million  for
large-target, higher-risk exploration and development.

         Anticipated ongoing  exploration and development  expenditures for each
of the Company's core areas include $21.0 million in the  Mid-Continent  region,
$13.0 million in the Gulf Coast and Gulf of Mexico region,  $10.0 million in the
ArkLaTex region, $12.0 million in the Williston Basin and $4.5 million allocated
within the Permian Basin and other.

         The results of  operations  also  include the results of the  Company's
large-target  exploration  efforts.  The Company has  several  prospects  in its
pipeline  of  large-target  exploration  ideas and expects to test some of these
prospects in 2000.

         On August 5, 2000,  the Company and its partners will assume control of
a 30,450-acre top lease in the North Ward Estes Field in Ward County, Texas. The
Company will have a 21.2% working interest in the production from  approximately
400 wells and the future  development  and  production  rights on this 50 square
mile  property.  The top lease will continue in effect for as long as oil and/or
gas is produced in paying quantities.

         The  amount  and   allocation   of  future   capital  and   exploration
expenditures  will  depend  upon a number of  factors,  including  the number of
available acquisition opportunities and the Company's ability to assimilate such
acquisitions.   Also,   the  impact  of  oil  and  gas   prices  on   investment
opportunities,  the  availability  of capital and borrowing  capability  and the
success of its  development  and  exploratory  activities  could lead to funding
requirements for further development.

         The Company continuously evaluates opportunities in the marketplace for
oil  and  gas  properties  and,  accordingly,  may be a  buyer  or a  seller  of
properties at various times.  St. Mary will continue to emphasize  smaller niche
acquisitions utilizing the Company's technical expertise,  financial flexibility
and structuring  experience.  In addition,  the Company is also actively seeking
larger  acquisitions of assets or companies that would afford  opportunities  to
expand the Company's existing core areas, to acquire additional geoscientists or
to gain a significant  acreage and production foothold in a new basin within the
United States. The acquisition of KRE in 1999 is an example of this strategy.

         In  June  1999  the  Company   participated  in  a  financing   package
arrangement  with Summo and  Resource  Capital Fund L.P.  ("RCF").  This package
resulted in the Company  receiving $2.1 million in exchange for reducing Summo's
note  receivable to $1.4 million and  transferring  4.96 million Summo shares to
RCF.  Also as part of the  arrangement,  the Company was  granted  17.5  million
warrants to purchase  Summo common stock with an exercise  price of CDN$0.12 per
share  that are fully  vested  and  expire on June 25,  2004.  No value has been
assigned to the warrants in the financial statements. The proceeds received from
RCF were applied to the Company's total investment in Summo and to total accrued
interest on the note receivable  resulting in a remaining net book value of $1.6
million, which management believes is realizable. The loan is secured by Summo's
interest in the Lisbon Valley Project and bears interest at LIBOR plus 2.5%. The
Company  continually  analyzes  its net  investment  in Summo and the  effect of
worldwide copper price and inventory fluctuations on Summo's stock price. Future
development  and financial  success of Lisbon  Valley are  dependent  upon these
factors.  The Company  owned 4.96 million  shares or 18% of Summo as of December
31, 1999.  In January 2000 Summo issued 1.02 million  shares of its common stock
to the Company as payment of  interest on the  Company's  note  receivable  from
Summo. On issuance of these shares the Company's ownership increased to 19%.

                                      -34-
<PAGE>

         Impact of the Year  2000  Issue.  The  following  Year 2000  statements
constitute a Year 2000 Readiness  Disclosure within the meaning of the Year 2000
Information and Readiness Disclosure Act of 1998.

         The Year 2000 Issue is the result of  computer  programs  and  embedded
computer chips being written or manufactured  using two digits rather than four,
or other methods,  to define the applicable year. Computer programs and embedded
chips that are  date-sensitive  may recognize a date using "00" as the year 1900
rather  than  the  year  2000.   This  could  result  in  a  system  failure  or
miscalculations  causing  disruptions  of  operations,  including,  among  other
things,  a temporary  inability to process  transactions,  operate  equipment or
engage in normal  business  activities.  Failure to correct a material Year 2000
compliance  problem could result in an interruption  in, or inability to conduct
normal  business  activities or operations.  Such failures could  materially and
adversely  affect a company's  results of  operations,  cash flow and  financial
condition. Beginning in 1998 the Company developed and implemented a formal plan
to mitigate the impact of Year 2000 compliance.  The plan was fully  implemented
before  December 31, 1999. To date the Company has not  encountered any material
Year 2000 compliance  problems and has suffered no material adverse effects from
this issue.

         Through December 31, 1999, the Company spent approximately  $450,000 on
its Year 2000  efforts.  This includes the costs of  consultants  as well as the
cost of repair or replacement of  non-compliant  hardware and software  systems.
The Company did not specifically track its internal costs of addressing the Year
2000 issue.  However,  management  does not believe  these  internal  costs were
material.

         The  Company  currently  has no  reason to  believe  that any Year 2000
compliance  failures  occurred  or will  occur  or that its  principal  vendors,
customers and business partners are not Year 2000 compliant.  However, there can
be no assurance that all Year 2000 problems have been  identified and corrected.
Therefore,  there can be no assurance  that  currently  unknown Year 2000 issues
will not  materially  impact the  Company's  results of  operations or adversely
affect its relationships with vendors,  customers and other business partners in
the year 2000.

Accounting Matters

         In June 1998, the FASB issued SFAS No. 133,  "Accounting for Derivative
Instruments and Hedging Activities," effective for all fiscal quarters of fiscal
years beginning after June 15, 1999. The Statement  requires companies to report
all  derivatives  at fair value as either  assets or  liabilities  and bases the
accounting  treatment  of the  derivatives  on the  reasons an entity  holds the
instrument.  In June  1999,  the  FASB  issued  SFAS  No.  137  "Accounting  for
Derivative  Instruments and Hedging  Activities - Deferral of the Effective Date
of FASB  Statement No. 133" which extended the effective date of SFAS No. 133 to
all fiscal  quarters of all fiscal  years  beginning  after June 15,  2000.  The
Company is  currently  reviewing  the effects  this  Statement  will have on the
financial statements in relation to the Company's hedging activities.

Effects of Inflation and Changing Prices

         Within  the United  States  inflation  has had a minimal  effect on the
Company. The Company cannot predict the future extent of any such effect.

         The  Company's  results of  operations  and cash flows are  affected by
material changes in oil and gas prices. Oil and gas prices are strongly impacted
by North American  influences on gas and global influences on oil in relation to
supply and  demand  for  petroleum  products.  Oil and gas  prices  are  further
impacted  by the  quality of the oil and gas to be sold and the  location of the
Company's producing properties in relation to markets for the products.  Oil and
gas price  increases or decreases have a  corresponding  effect on the Company's
revenues  from oil and gas  sales.  Oil and gas  prices  also  affect the prices
charged for drilling and related services. If oil and gas prices increase, there
could be a  corresponding  increase in the cost to the Company for  drilling and
related services,  although offset by an increase in revenues.  Also, as oil and
gas prices increase, the cost of acquisitions of producing properties increases,
which  could limit the number and  accessibility  of quality  properties  on the
market.

                                      -35-
<PAGE>

         Material  changes in oil and gas prices  affect the  current and future
value of the Company's estimated proved reserves and the borrowing capability of
the Company,  which is largely based on the value of such proved  reserves.  The
last half of 1998 and most of the first  quarter  of 1999 was  characterized  by
historically low oil prices and weakening gas markets. Investment funds left the
oil and  gas  sector  and  caused  an  abundance  of  available  drilling  rigs,
personnel,  supplies and services with a corresponding  reduction of costs.  Oil
and gas prices have  increased  since the first  quarter of 1999.  The number of
active  drilling rigs has increased  along with the cost of personnel,  supplies
and  services.  If oil and gas prices  continue  to  increase,  there could be a
return to shortages  and  corresponding  increases in the cost to the Company of
exploration, drilling and production of oil and gas.

         The  Company  seeks to protect  its rate of return on  acquisitions  of
producing  properties  by hedging up to the first 24 months of an  acquisition's
production  at  prices  approximately  equal  to  those  used  in the  Company's
acquisition  evaluation and pricing model.  The Company also  periodically  uses
hedging  contracts to hedge or otherwise  reduce the impact of oil and gas price
fluctuations on production from each of its core operating  areas. The Company's
strategy is to ensure certain  minimum levels of operating cash flow and to take
advantage of windows of favorable commodity prices. The Company generally limits
its aggregate  hedge position to no more than 50% of its total  production.  The
Company seeks to minimize  basis risk and indexes the majority of its oil hedges
to NYMEX  prices and the  majority of its gas hedges to various  regional  index
prices  associated  with  pipelines in proximity to the  Company's  areas of gas
production.  The Company has hedged  approximately 19% of its estimated 2000 gas
production at an average fixed price of $2.43 per MMBtu and approximately 22% of
its estimated  2000 oil  production at an average fixed price of $20.96 per Bbl.
The Company has hedged less than 1% of its estimated 2001 gas and oil production
at average fixed prices of $2.46 per MMBtu and $15.76 per Bbl, respectively.  In
2000 the Company has price  collars on  approximately  23% of its  estimated gas
production  with  price  ceilings  between  $2.50  and $2.94 per MMBtu and price
floors between $2.00 and $2.30 per MMBtu and  approximately 27% of its estimated
oil production  with price ceilings  between $17.75 and $27.00 per Bbl and price
floors  between  $15.00 and $19.50 per Bbl. In 2001 the  Company  also has price
collars on approximately 22% of its estimated gas production with price ceilings
between  $2.72 and $3.04 per MMBtu and price floors  between $2.25 and $2.50 per
MMBtu and  approximately  7% of its oil production  with price ceilings  between
$20.64 and 20.90 per Bbl and price floors between $16.44 and $16.70 per Bbl.

Financial Instrument Market Risk

         The Company holds derivative  contracts and financial  instruments that
have cash  flow and net  income  exposure  to  changes  in  commodity  prices or
interest rates.  Financial and commodity-based  derivative contracts are used to
limit the risks  inherent in some crude oil and natural gas price  changes  that
have an effect on the  Company.  In prior  years the  Company  has  occasionally
hedged interest rates, and may do so in the future should circumstances warrant.

         The Company's Board of Directors has adopted a policy regarding the use
of derivative  instruments.  This policy  requires every  derivative used by the
Company to relate to underlying offsetting positions,  anticipated  transactions
or firm  commitments.  It prohibits the use of  speculative,  highly  complex or
leveraged  derivatives.  Under the policy,  the Chief Executive Officer and Vice
President of Finance must review and approve all risk  management  programs that
use  derivatives.  The Audit  Committee of the Company's Board of Directors also
periodically reviews these programs.

                                      -36-
<PAGE>

         Commodity Price Risk. The Company uses various hedging  arrangements to
manage the  Company's  exposure to price risk from its natural gas and crude oil
production.  These  hedging  arrangements  have the  effect  of  locking  in for
specified periods,  at predetermined  prices or ranges of prices, the prices the
Company will receive for the volumes to which the hedge  relates.  Consequently,
while these hedging arrangements are structured to reduce the Company's exposure
to decreases in prices associated with the hedged commodity, they also limit the
benefit the Company might otherwise receive from any price increases  associated
with the hedged  commodity.  A  hypothetical  10% change in the year-end  market
prices of  commodity-based  swaps and futures  contracts on a notional amount of
26.1 million  MMBtu would have caused a potential  $45,000  change in net income
(loss)  before  income taxes for the Company for  contracts in place on December
31, 1999. A 10% change in the year-end  market prices of  commodity-based  swaps
and future  contracts  on a notional  amount of 1,398  MBbls would have caused a
potential  $859,000  change in net income  (loss)  before  income  taxes for the
Company for oil  contracts  in place on December 31,  1999.  These  hypothetical
changes were  discounted  to present  value using a 7.5% discount rate since the
latest  expected  maturity  date of some of the swaps and futures  contracts  is
greater  than one year from the  reporting  date.  The  derivative  gain or loss
effectively offsets the loss or gain on the underlying  commodity exposures that
have been  hedged.  The fair values of the swaps are  estimated  based on quoted
market prices of comparable  contracts and  approximate  the net gains or losses
that would have been  realized if the contracts had been closed out at year end.
The fair values of the futures are based on quoted market  prices  obtained from
the New York Mercantile Exchange.

         Interest Rate Risk. Market risk is estimated as the potential change in
fair  value  resulting  from an  immediate  hypothetical  one  percentage  point
parallel  shift in the  yield  curve.  The  sensitivity  analysis  presents  the
hypothetical  change in fair value of those  financial  instruments  held by the
Company at December 31, 1999,  which are sensitive to changes in interest rates.
For fixed-rate  debt,  interest rate changes affect the fair market value but do
not impact  results of  operations or cash flows.  Conversely  for floating rate
debt, interest rate changes generally do not affect the fair market value but do
impact future results of operations  and cash flows,  assuming other factors are
held  constant.  The  carrying  amount  of  the  Company's  floating  rate  debt
approximates its fair value. At December 31, 1999, the Company had floating rate
debt of $13.0 million and had no fixed rate debt. Assuming constant debt levels,
the results of operations and cash flows impact for the next year resulting from
a one percentage point change in interest rates would be approximately  $130,000
before taxes.

                                      -37-
<PAGE>

ITEM 8.           FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

         The Consolidated Financial Statements that constitute Item 8 follow the
text of this  report.  An index to the  Consolidated  Financial  Statements  and
Schedules appears in Item 14(a) of this report.

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 from
the Company's  proxy statement for the 2000 annual meeting of stockholders to be
filed no later than April 30, 2000.

ITEM 11. EXECUTIVE COMPENSATION

         The information required by this Item is incorporated by reference from
the Company's  proxy statement for the 2000 annual meeting of stockholders to be
filed no later than April 30, 2000.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND
         MANAGEMENT

         The information required by this Item is incorporated by reference from
the Company's  proxy statement for the 2000 annual meeting of stockholders to be
filed no later than April 30, 2000.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         The information required by this Item is incorporated by reference from
the Company's  proxy statement for the 2000 annual meeting of stockholders to be
filed no later than April 30, 2000.

                                      -38-
<PAGE>

                                     PART IV

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

         (a)(1)  and  (a)(2)  Financial   Statements  and  Financial   Statement
Schedules:

         Report of Independent Public Accountants........................... F-1
         Consolidated Balance Sheets........................................ F-2
         Consolidated Statements of Operations.............................. F-3
         Consolidated Statements of Stockholders' Equity.................... F-4
         Consolidated Statements of Cash Flows.............................. F-5
         Notes to Consolidated Financial Statements......................... F-7

         All other schedules are omitted because the required information is not
applicable or is not present in amounts  sufficient to require submission of the
schedule or because  the  information  required is included in the  Consolidated
Financial Statements and Notes thereto.

         (b) Reports on Form 8-K. One report on Form 8-K dated December 29, 1999
was filed during the last quarter of 1999. This report on Form 8-K included Item
2 and Item 7 regarding the  acquisition  of King Ranch  Energy,  Inc. and Item 5
regarding the appointment of Robert L. Nance to St. Mary's board of directors to
replace Richard C. Kraus, who resigned.

         (c)  Exhibits.  The following  exhibits are filed with or  incorporated
into this report on Form 10-K:

Exhibit
Number   Description
- ------   -----------
2.1      Agreement  and Plan of Merger dated July 27, 1999 among St. Mary Land &
         Exploration Company, St. Mary Acquisition Corporation, King Ranch, Inc.
         and King Ranch Energy, Inc. as amended by Amendment No. 1 and Amendment
         No. 2 to Agreement and Plan of Merger dated  November 8, 1999 (included
         as  Annex  A  to  the  joint  proxy/consent  statement  and  prospectus
         contained in the registrant's  Amendment #2 to Form S-4/A (Registration
         No.  333-85537) filed on November 12, 1999 and  incorporated  herein by
         reference)
2.2      Stock  Exchange  Agreement  dated  June 1, 1999  among St.  Mary Land &
         Exploration Company,  Robert L. Nance, Penni W. Nance, Amy Nance Cebull
         and Robert  Scott  Nance  (filed as Exhibit  10.27 to the  registrant's
         Registration  Statement on Form S-4  (Registration No. 333-85537) filed
         on August 19, 1999 and incorporated herein by reference)
2.3      Stock  Exchange  Agreement  dated  June 1, 1999  among St.  Mary Land &
         Exploration  Company,  Robert L. Nance and Robert T.  Hanley  (filed as
         Exhibit 10.28 to the  registrant's  Registration  Statement on Form S-4
         (Registration  No. 333-85537) filed on August 19, 1999 and incorporated
         herein by reference)
2.4      Stock  Exchange  Agreement  dated June 1, 1999  between St. Mary Land &
         Exploration Company and Robert T. Hanley (filed as Exhibit 10.29 to the
         registrant's  Registration  Statement  on Form  S-4  (Registration  No.
         333-85537)  filed  on  August  19,  1999  and  incorporated  herein  by
         reference)
3.1      Restated  Certificate of  Incorporation  of St. Mary Land & Exploration
         Company  dated  November  11,  1992  (filed  as  Exhibit  3.1A  to  the
         registrant's  Registration  Statement  on Form  S-1  (Registration  No.
         33-53512) and incorporated herein by reference)
3.2      Certificate of Amendment to Certificate  of  Incorporation  of St. Mary
         Land & Exploration Company dated June 22, 1998 (filed as Exhibit 3.2 to
         the registrant's  Registration  Statement on Form S-4 (Registration No.
         333-85537)  filed  on  August  19,  1999  and  incorporated  herein  by
         reference)
3.3      Restated By-laws of St. Mary Land & Exploration  Company as of June 15,
         1994 (filed as Exhibit 3.3 to the registrant's  Registration  Statement
         on Form S-4  (Registration  No. 333-85537) filed on August 19, 1999 and
         incorporated herein by reference)

                                      -39-
<PAGE>

Exhibit
Number   Description
- ------   -----------
4.1      St. Mary Land & Exploration  Company Shareholder Rights Plan adopted on
         July 15,  1999  (filed as  Exhibit  4.1 to the  registrant's  Quarterly
         Report on Form 10-Q/A (File No. 0-20872) for the quarter ended June 30,
         1999 and incorporated herein by reference)
10.1     Stock  Option  Plan  (filed  as  Exhibit   10.3  to  the   registrant's
         Registration  Statement on Form S-1  (Registration  No.  33-53512)  and
         incorporated herein by reference)
10.2     Stock   Appreciation   Rights  Plan  (filed  as  Exhibit  10.4  to  the
         registrant's  Registration  Statement  on Form  S-1  (Registration  No.
         33-53512) and incorporated herein by reference)
10.3     Cash Bonus Plan (filed as Exhibit 10.5 to the registrant's Registration
         Statement on Form S-1  (Registration  No.  33-53512)  and  incorporated
         herein by reference)
10.4     Net  Profits  Interest  Bonus  Plan  (filed  as  Exhibit  10.6  to  the
         registrant's  Registration  Statement  on Form  S-1  (Registration  No.
         33-53512) and incorporated herein by reference)
10.5     Summary Plan  Description/Pension  Plan dated January 1, 1985 (filed as
         Exhibit  10.7 to the  registrant's  Registration  Statement on Form S-1
         (Registration No. 33-53512) and incorporated herein by reference)
10.6     Non-qualified Unfunded Supplemental  Retirement Plan, as amended (filed
         as Exhibit 10.8 to the registrant's  Registration Statement on Form S-1
         (Registration No. 33-53512) and incorporated herein by reference)
10.7     Summary Plan Description Custom 401(k) Plan and Trust (filed as Exhibit
         10.10  to  the   registrant's   Registration   Statement  on  Form  S-1
         (Registration No. 33-53512) and incorporated herein by reference)
10.8     Stock Option Agreement - Mark A. Hellerstein (filed as Exhibit 10.11 to
         the registrant's  Registration  Statement on Form S-1 (Registration No.
         33-53512) and incorporated herein by reference)
10.9     Stock Option Agreement - Ronald D. Boone (filed as Exhibit 10.12 to the
         registrant's  Registration  Statement  on Form  S-1  (Registration  No.
         33-53512) and incorporated herein by reference)
10.10    Employment  Agreement between Registrant and Mark A. Hellerstein (filed
         as Exhibit 10.13 to the registrant's Registration Statement on Form S-1
         (Registration No. 33-53512) and incorporated herein by reference)
10.11    Summary Plan  Description  401(k) Profit Sharing Plan( filed as Exhibit
         10.34 to the registrant's Annual Report on Form 10-K (File No. 0-20872)
         for the year  ended  December  31,  1994  and  incorporated  herein  by
         reference)
10.12    Summary Plan Description/Pension Plan dated December 30, 1994 (filed as
         Exhibit 10.35 to the registrant's  Annual Report on Form 10-K (File No.
         0-20872) for the year ended December 31, 1994 and  incorporated  herein
         by reference)
10.13    Second Restated  Partnership  Agreement - Panterra  Petroleum (filed as
         Exhibit 10.41 to the registrant's  Annual Report on Form 10-K (File No.
         0-20872) for the year ended December 31, 1995 and  incorporated  herein
         by reference)
10.14    Purchase and Sale Agreement between Siete Oil & Gas Corporation and St.
         Mary Land &  Exploration  Company  (filed as Exhibit 10.42 filed to the
         registrant's  Current Report on Form 8-K (File No.  0-20872) dated June
         28, 1996, as amended by Registrant's Current Report on Form 8-K/A (File
         No. 0-20872) dated June 28, 1996 and incorporated herein by reference)
10.15    Acquisition Agreement regarding the sale of St. Mary Land & Exploration
         Company's interest in the Russian joint venture (filed as Exhibit 10.43
         filed to the registrant's Current Report on Form 8-K (File No. 0-20872)
         dated December 16, 1996 and incorporated herein by reference)
10.16    Employment  Agreement between registrant and Ralph H. Smith,  effective
         October 1, 1995 (filed as Exhibit 99 filed to the registrant's  Current
         Report  on Form 8-K (File  No.  0-20872)  dated  January  28,  1997 and
         incorporated herein by reference)
10.17    St. Mary Land & Exploration Company Employee Stock Purchase Plan (filed
         as Exhibit 10.48 filed to the  registrant's  Annual Report on Form 10-K
         (File  No.   0-20872)  for  the  year  ended   December  31,  1997  and
         incorporated herein by reference)

                                      -40-
<PAGE>

Exhibit
Number   Description
- ------   -----------
10.18    Credit  Agreement  dated June 30, 1998  (filed as Exhibit  10.52 to the
         registrant's  Quarterly  Report on Form 10-Q (File No. 0-20872) for the
         quarter ended June 30, 1998 and incorporated herein by reference)
10.19    Purchase and Sale  Agreement  dated  November  12, 1998  between  ONEOK
         Resources  Company  (filed as Exhibit  10.53 filed to the  registrant's
         Current  Report on Form 8-K (File No.  0-20872) dated December 30, 1998
         and incorporated herein by reference)
10.20    Credit Agreement between Panterra  Petroleum and Colorado National Bank
         dated June 17, 1997 (filed as Exhibit 10.25 to the registrant's  Annual
         Report on Form 10-K (File No.  0-20872) for the year ended December 31,
         1998 and incorporated herein by reference)
10.21    Agreement  between Summo Minerals  Corporation,  Summo USA Corporation,
         St. Mary Land & Exploration Company, and St. Mary Minerals Inc. re: the
         formation of Lisbon Valley Mining  Company dated May 15, 1997 (filed as
         Exhibit 10.26 to the registrant's  Annual Report on Form 10-K (File No.
         0-20872) for the year ended December 31, 1998 and  incorporated  herein
         by reference)
10.22    Pledge and Security  Agreement  From Summo USA  Corporation  and Lisbon
         Valley Mining Co. LLC to St. Mary Minerals Inc. dated November 23, 1998
         (filed as Exhibit 10.27 to the registrant's  Annual Report on Form 10-K
         (File  No.   0-20872)  for  the  year  ended   December  31,  1998  and
         incorporated herein by reference)
10.23    Deed of Trust,  Assignment  of Rents and  Security  Agreement by Lisbon
         Valley  Mining Co.  LLC and  Stewart  Title  Guaranty  Company  for the
         benefit of St. Mary  Minerals  Inc.  dated  November 23, 1998 (filed as
         Exhibit 10.28 to the registrant's  Annual Report on Form 10-K (File No.
         0-20872) for the year ended December 31, 1998 and  incorporated  herein
         by reference)
10.24    St. Mary Land &  Exploration  Company  Incentive  Stock Option Plan, As
         Amended  on March 25,  1999  (filed  as  Exhibit  10.1 to  registrant's
         Quarterly  Report on Form 10-Q (File No. 0-20872) for the quarter ended
         March 31, 1999 and incorporated herein by reference)
10.25    St. Mary Land &  Exploration  Company  Stock Option Plan, As Amended on
         March 25, 1999 (filed as Exhibit 10.2 to registrant's  Quarterly Report
         on Form 10-Q (File No.  0-20872)  for the quarter  ended March 31, 1999
         and incorporated herein by reference)
10.26    Net Profits  Interest  Bonus Plan, As Amended on September 19, 1996 and
         July  24,  1997  and  January  28,  1999  filed  as  Exhibit   10.3  to
         registrant's  Quarterly  Report on Form 10-Q (File No. 0-20872) for the
         quarter ended March 31, 1999 and incorporated herein by reference)
10.27    Loan and Stock  Purchase  Agreement  dated June 25, 1999 among Resource
         Capital  Fund L.P.,  St. Mary Land &  Exploration  Company and St. Mary
         Minerals  Inc.(filed as Exhibit 10.30 to the registrant's  Registration
         Statement on Form S-4  (Registration No. 333-85537) filed on August 19,
         1999 and incorporated herein by reference)
10.28    Credit Agreement dated June 25, 1999 among Summo Minerals  Corporation,
         Summo USA Corporation, Resource Capital Fund L.P. and St. Mary Minerals
         Inc.(filed as Exhibit 10.31 to the registrant's  Registration Statement
         on Form S-4  (Registration  No. 333-85537) filed on August 19, 1999 and
         incorporated herein by reference)
10.29    Replacement Promissory dated June 25, 1999 payable to St. Mary Minerals
         Inc.  in the  amount  of  $1,400,000  (filed  as  Exhibit  10.32 to the
         registrant's  Registration  Statement  on Form  S-4  (Registration  No.
         333-85537)  filed  on  August  19,  1999  and  incorporated  herein  by
         reference)
10.30    Pledge and Security  Agreement dated June 25, 1999 among Summo Minerals
         Corporation,   Resource  Capital  Fund  L.P.,  and  St.  Mary  Minerals
         Inc.(filed as Exhibit 10.33 to the registrant's  Registration Statement
         on Form S-4  (Registration  No. 333-85537) filed on August 19, 1999 and
         incorporated herein by reference)
10.31    Pledge  and  Security  Agreement  dated June 25,  1999 among  Summo USA
         Corporation,  Resource  Capital Fund L.P.,  and St. Mary  Minerals Inc.
         (filed as Exhibit 10.34 to the registrant's  Registration  Statement on
         Form S-4  (Registration  No.  333-85537)  filed on August 19,  1999 and
         incorporated herein by reference)

                                      -41-
<PAGE>

Exhibit
Number   Description
- ------   -----------
10.32    Warrant Agreement dated June 25, 1999 among Summo Minerals Corporation,
         Resource Capital Fund L.P. and St. Mary Minerals Inc. (filed as Exhibit
         10.35  to  the   registrant's   Registration   Statement  on  Form  S-4
         (Registration  No. 333-85537) filed on August 19, 1999 and incorporated
         herein by reference)
21.1*    Subsidiaries of Registrant
23.1*    Consent of Arthur Andersen LLP
23.2*    Consent of Ryder Scott Company, L.P.
24.1*    Power of Attorney (included on signature page of this document)
27.1*    Financial Data Schedule

* Filed herewith.

         (d) Financial Statement Schedules. See Item 14(c) above.

                                      -42-
<PAGE>

                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To the Board of Directors and Stockholders of
St. Mary Land & Exploration Company and Subsidiaries:

We have audited the accompanying  consolidated balance sheets of St. Mary Land &
Exploration Company (a Delaware corporation) and subsidiaries as of December 31,
1999  and  1998,  and  the  related   consolidated   statements  of  operations,
stockholders'  equity,  and cash flows for each of the three years in the period
ended December 31, 1999. 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 auditing standards generally accepted
in the United States. Those standards require that we plan and perform the audit
to obtain reasonable  assurance about whether the financial  statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting  the amounts and  disclosures in the financial  statements.  An audit
also includes assessing the accounting principles used and significant estimates
made by  management,  as well as  evaluating  the  overall  financial  statement
presentation.  We believe  that our audits  provide a  reasonable  basis for our
opinion.

In our opinion, the consolidated  financial statements referred to above present
fairly,  in all material  respects,  the  financial  position of St. Mary Land &
Exploration  Company and  subsidiaries as of December 31, 1999 and 1998, and the
results of their  operations and their cash flows for each of the three years in
the period ended  December 31, 1999, in conformity  with  accounting  principles
generally accepted in the United States.

/s/ARTHUR ANDERSEN LLP

Denver, Colorado,
    February 17, 2000

                                      F-1
<PAGE>
ITEM 8.  FINANCIAL STATEMENTS AND SUPLEMENTARY DATA

              ST. MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES
                           CONSOLIDATED BALANCE SHEETS
                      (In thousands, except share amounts)
<TABLE>
<CAPTION>
                                ASSETS                                            December 31,
                                ------                                            ------------
                                                                                1999        1998
                                                                                ----        ----
<S>                                                                           <C>         <C>
Current assets:
    Cash and cash equivalents                                                 $  14,195   $  7,821
    Accounts receivable                                                          22,971     17,937
    Prepaid expenses and other                                                    2,173        795
    Refundable income taxes                                                          26        391
    Deferred income taxes                                                            90        125
                                                                             ----------------------
        Total current assets                                                     39,455     27,069
                                                                             ----------------------
Property and equipment (successful efforts method), at cost:
    Proved oil and gas properties                                               292,323    241,021
    Less accumulated depletion, depreciation and amortization                  (142,680)  (124,541)
    Unproved oil and gas properties, net of impairment
      allowance of $8,984 in 1999 and $5,987 in 1998                             28,556     25,588
    Other property and equipment, net of accumulated depreciation
      of $3,033 in 1999 and $2,294 in 1998                                        2,465      1,757
                                                                             ----------------------
                                                                                180,664    143,825
Other assets:                                                                ----------------------
    Khanty Mansiysk Oil Corporation receivable and stock                          5,110      6,839
    Summo Minerals Corporation  investment and receivable                         1,655      2,869
    Restricted cash                                                                   -        720
    Other assets                                                                  3,554      3,175
                                                                             ----------------------
                                                                                 10,319     13,603
                                                                             ----------------------
                                                                              $ 230,438  $ 184,497
                                                                             ======================
                       LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
    Accounts payable and accrued expenses                                     $  25,743  $  16,926
    Current portion of stock appreciation rights                                    272        358
                                                                             ----------------------
        Total current liabilities                                                26,015     17,284
                                                                             ----------------------
Long-term liabilities:
    Long-term debt                                                               13,000     19,398
    Deferred income taxes                                                           501     11,158
    Stock appreciation rights                                                       455        422
    Other noncurrent liabilities                                                  1,380      1,493
                                                                             ----------------------
                                                                                 15,336     32,471
                                                                             ----------------------
Commitments and contingencies (Notes 1,6,7,8)
                                                                             ----------------------
Minority interest                                                                   315          -
                                                                             ----------------------
Stockholders' equity:
Common stock, $.01 par value: authorized  - 50,000,000 shares;
  issued and outstanding - 13,946,955 shares in 1999 and
10,992,447 shares in 1998                                                           139        110
Additional paid-in capital                                                      124,114     67,761
Treasury stock - 182,800 shares in 1999 and 147,800shares in 1998, at cost       (2,995)    (2,470)
Retained earnings                                                                67,230     69,341
Unrealized gain on marketable equity securities, net of taxes                       284          -
                                                                             ----------------------
Total stockholders' equity                                                      188,772    134,742
                                                                             ----------------------
                                                                              $ 230,438  $ 184,497
                                                                             ======================
</TABLE>
                   The accompanying notes are an integral part
                   of these consolidated financial statements.

                                      F-2
<PAGE>

              ST. MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF OPERATIONS
                    (In thousands, except per share amounts)
<TABLE>
<CAPTION>
                                                                             For the Years Ended December 31,
                                                                             --------------------------------
                                                                               1999         1998        1997
                                                                               ----         ----        ----
<S>                                                                         <C>          <C>         <C>
Operating revenues:
     Oil and gas production                                                 $ 72,494     $ 70,648    $ 75,764
     Gain on sale of Russian joint venture                                         -            -       9,671
     Gain (loss) on sale of proved properties                                    (55)       7,685       4,220
     Other oil and gas revenue                                                 1,166          352       1,145
     Other revenues                                                              416           59         246
                                                                            ----------------------------------
         Total operating revenues                                             74,021       78,744      91,046
                                                                            ----------------------------------
Operating expenses:
    Oil and gas production                                                    18,681       17,005      15,258
    Depletion, depreciation and amortization                                  22,574       24,912      18,366
    Impairment of proved properties                                            3,982       17,483       5,202
    Exploration                                                               11,593       11,705       6,847
    Abandonment and impairment of unproved properties                          6,616        4,457       2,077
    General and administrative                                                 9,172        7,097       7,645
    Writedown of Russian convertible receivable                                    -        4,553           -
    Writedown of investment in Summo Minerals Corporation                          -        3,949           -
    Loss in equity investees                                                      58          661         325
    Minority interest and other                                                1,744          141         281
                                                                            ----------------------------------
        Total operating expenses                                              74,420       91,963      56,001
                                                                            ----------------------------------

Income (loss) from operations                                                   (399)     (13,219)     35,045

Nonoperating income and (expense):
    Interest income                                                            1,008          638       1,043
    Interest expense                                                            (933)      (1,665)     (1,142)
                                                                             ----------------------------------
Income (loss) from continuing operations before income taxes                    (324)     (14,246)     34,946
Income tax expense (benefit)                                                    (406)      (5,415)     12,325
                                                                            ----------------------------------
Income (loss) from continuing operations                                          82       (8,831)     22,621
Gain on sale of discontinued operations, net of taxes
  of $17 in 1998 and $252 in 1997                                                  -           34         488
                                                                            ----------------------------------
Net income (loss)                                                           $     82     $ (8,797)   $ 23,109
                                                                            ==================================
Basic earnings per common share:
    Income (loss)  from continuing operations                               $    .01     $   (.81)   $   2.13
    Gain on sale of discontinued operations                                        -            -         .05
                                                                            ----------------------------------
Basic net income (loss) per common share                                    $    .01     $   (.81)   $   2.18
                                                                            ==================================
Diluted earnings per common share:
    Income (loss) from continuing operations                                $    .01     $   (.81)   $   2.10
    Gain on sale of discontinued operations                                        -            -         .05
                                                                            ---------------------------------
Diluted net income (loss) per common share                                  $    .01     $   (.81)   $   2.15
                                                                            ==================================

Basic weighted average shares outstanding                                     11,099       10,937      10,620
                                                                            =================================
Diluted weighted average shares outstanding                                   11,164       10,937      10,753
                                                                            =================================
</TABLE>
                   The accompanying notes are an integral part
                   of these consolidated financial statements.

                                       F-3
<PAGE>

              ST. MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES
                 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
                      (In thousands, except share amounts)
<TABLE>
<CAPTION>
                                                                                                        Accumulated
                                                Common Stock   Additional            Treasury Stock       Other           Total
                                              ---------------    Paid-in  Retained  ----------------   Comprehensive   Stockholder's
                                              Shares   Amount    Capital  Earnings  Shares    Amount      Income          Equity
                                           --------------------------------------------------------------------------------------
<S>                                         <C>            <C>  <C>      <C>      <C>        <C>          <C>        <C>
Balance, December 31, 1996                   8,759,214    $ 88  $ 15,801 $ 59,303         -  $     -       $ (32)     $ 75,160

Comprehensive income:
    Net income                                       -       -         -   23,109         -        -           -        23,109
    Unrealized gain on marketable equity
        securities, net of taxes                     -       -         -        -         -        -          32            32
                                                                                                                        ------
    Total comprehensive income                                                                                          23,141
                                                                                                                        ------
Cash dividends, $ .20 per share                      -       -         -   (2,084)        -        -           -        (2,084)
Purchase and retirement of common stock            (55)      -        (2)       -         -        -           -            (2)
Sale of common stock, net of income tax
    benefit of stock option exercises        2,217,664      22    51,627        -         -        -           -        51,649
Directors' stock compensation                    3,600       -        68        -         -        -           -            68
                                           ------------------------------------------------------------------------------------
Balance, December 31, 1997                  10,980,423     110    67,494   80,328         -        -           -       147,932

Comprehensive income:
    Net loss                                         -       -         -   (8,797)        -        -           -        (8,797)
                                                                                                                        -------
    Total comprehensive income                                                                                          (8,797)
                                                                                                                        -------
Cash dividends, $ .20 per share                      -       -         -   (2,190)        -        -           -        (2,190)
Treasury stock purchases                             -       -         -        -  (147,800)  (2,470)          -        (2,470)
Issuance for Employee Stock Purchase Plan        8,424       -       172        -         -        -           -           172
Directors' stock compensation                    3,600       -        95        -         -        -           -            95
                                           ------------------------------------------------------------------------------------
Balance, December 31, 1998                  10,992,447     110    67,761   69,341  (147,800)  (2,470)          -       134,742

Comprehensive income:
Net Income                                           -       -         -       82         -        -           -            82
Unrealized gain on marketable equity
    securities, net of taxes                         -       -         -        -         -        -         284           284
                                                                                                                        -------
Total comprehensive income                                                                                                 366
                                                                                                                        -------
Cash dividends, $ .20 per share                      -       -         -   (2,193)        -        -           -        (2,193)
Treasury stock purchases                             -       -         -        -   (35,000)    (525)          -          (525)
Issuance for Employee Stock Purchase Plan       16,397       -       258        -         -        -           -           258
Employee Stock Purchase Plan disqualified
    distributions                                    -       -        20        -         -        -           -            20
Sale of common stock, net of income
    tax benefit of stock option exercises        8,830       -       124        -         -        -           -           124
Directors' stock compensation                    3,600       -        57        -         -        -           -            57
Issuance of common stock for Acquisition
    of Nance Petroleum Corporation             259,494       3     3,088        -         -        -           -         3,091
Issuance of common stock for Acquisition
    of King Ranch Energy, Inc                2,666,187      26    52,806        -         -        -           -        52,832
                                           ------------------------------------------------------------------------------------
Balance, December 31, 1999                  13,946,955   $ 139  $124,114 $ 67,230  (182,800) $(2,995)      $ 284     $ 188,772
                                           ====================================================================================
</TABLE>
                   The accompanying notes are an integral part
                   of these consolidated financial statements.

                                       F-4
<PAGE>

              ST. MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (In thousands)
<TABLE>
<CAPTION>
                                                                             For the Years Ended December 31,
                                                                             --------------------------------
                                                                               1999        1998        1997
                                                                               ----        ----        ----
Reconciliation of net income to net cash provided by operating activities:
<S>                                                                           <C>         <C>         <C>
 Net income (loss)                                                            $     82    $ (8,797)   $ 23,109
 Adjustments to reconcile net income (loss) to net
     cash provided by operating activities:
     Gain on sale of Russian joint venture                                           -           -      (9,671)
     Writedown of Russian convertible receivable                                     -       4,553           -
     Writedown of investment in Summo Minerals Corporation                           -       3,949           -
     Loss (gain) on sale of proved properties                                       55      (7,685)     (4,220)
     Depletion, depreciation and amortization                                   22,574      24,912      18,366
     Impairment of proved properties                                             3,982      17,483       5,202
     Exploration                                                                 4,991       4,892       1,638
     Abandonment and impairment of unproved properties                           6,616       4,457       2,077
     Loss in equity investees                                                       58         661         325
     Deferred income taxes                                                        (898)     (5,431)     10,799
     Other                                                                         (29)        378         428
                                                                             ----------------------------------
                                                                                37,431      39,372      48,053
 Changes in current assets and liabilities:
     Accounts receivable                                                         4,983       6,502      (3,235)
     Prepaid expenses                                                              839      (2,109)      2,162
     Refundable income taxes                                                       365        (145)       (189)
     Accounts payable and accrued expenses                                      (2,812)      1,762      (2,359)
     Stock appreciation rights                                                     (86)          7      (1,199)
     Deferred income taxes                                                          35          (3)       (122)
                                                                             ----------------------------------
 Net cash provided by operating activities                                      40,755      45,386      43,111
                                                                             ----------------------------------
 Cash flows from investing activities:
     Proceeds from sale of oil and gas properties                                1,056      23,380       7,723
     Capital expenditures                                                      (34,994)    (54,375)    (54,164)
     Acquisition of oil and gas properties                                      (5,294)     (4,204)    (27,291)
     Sale of Russian joint venture                                                   -          75       5,608
     Sale of Chelsea Corporation                                                 2,066           -           -
     Investment in and loans to Summo Minerals Corporation                        (287)       (788)     (2,332)
     Collections on loan to Summo Minerals Corporation                           2,163           -           -
     Receipts from restricted cash                                                 720       7,275       9,747
     Deposits to restricted cash                                                     -      (7,995)     (6,829)
     Cash received in the purchase of Nance Petroleum Corporation                  635           -           -
     Cash received in the purchase of King Ranch Energy, Inc.                   12,068           -           -
     Other                                                                        (376)       (350)         61
                                                                             ----------------------------------
 Net cash used in investing activities                                         (22,243)    (36,982)    (67,477)
                                                                             ----------------------------------
 Cash flows from financing activities:
     Proceeds from long-term debt                                               29,750      54,579      22,837
     Repayment of long-term debt                                               (39,537)    (57,787)    (43,819)
     Proceeds from sale of common stock, net of offering costs                     311         173      51,207
     Repurchase of common stock                                                   (525)     (2,470)          -
     Dividends paid                                                             (2,193)     (2,190)     (2,084)
     Other                                                                          56           -          (1)
                                                                             ----------------------------------
 Net cash (used in) provided by financing activities                           (12,138)     (7,695)     28,140
                                                                             ----------------------------------

 Net increase in cash and cash equivalents                                       6,374         709       3,774
 Cash and cash equivalents at beginning of period                                7,821       7,112       3,338
                                                                             ----------------------------------
 Cash and cash equivalents at end of period                                   $ 14,195    $  7,821    $  7,112
                                                                             ==================================
</TABLE>
                   The accompanying notes are an integral part
                   of these consolidated financial statements.

                                      F-5
<PAGE>

              ST. MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES
                CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

Supplemental   schedule  of  additional   cash  flow   information  and  noncash
activities:
<TABLE>
<CAPTION>
                                                For the Years Ended December 31,
                                                --------------------------------
                                                   1999         1998        1997
                                                   ----         ----        ----
                                                           (in thousands)
<S>                                             <C>          <C>         <C>
      Cash paid for interest                    $   916     $  1,650    $  1,248

      Cash paid for income taxes                     92          307       1,864

      Cash paid for exploration expenses         11,826       11,873       6,462
</TABLE>

In February  1997 the Company sold its interest in the Russian joint venture for
$17,609,000,  receiving  $5,608,000 of cash,  $1,869,000 of Khanty  Mansiysk Oil
Corporation common stock, and a $10,134,000 receivable in a form equivalent to a
retained production payment.

In  February  1997 the  Company  issued  3,600  shares  of  common  stock to its
directors and recorded compensation expense of $68,175.

In June 1997 an officer of the Company  exercised  14,072  options to buy common
stock at $20.50 per share.  As payment of the exercise  price and taxes due, the
Company  accepted  11,022 of the exercised  shares,  resulting in an increase in
shares outstanding of 3,050.

In January 1998 the Company issued 3,600 shares of common stock to its directors
and recorded compensation expense of $94,500.

In January 1999 the Company issued 3,600 shares of common stock to its directors
and recorded compensation expense of $54,612.

In June 1999 the Company  acquired  Nance  Petroleum  Corporation  and Quanterra
Alpha  Limited  Partnership  for 259,494  shares of the  Company's  common stock
valued  at  $3,091,000  together  with the  assumption  of  $3,189,000  of Nance
Petroleum Corporation debt. The acquisition was accounted for as a purchase.

In December  1999 the Company  acquired  King Ranch  Energy,  Inc. for 2,666,187
shares of the Company's common stock valued at $52,832,000.  The acquisition was
accounted for as a purchase.

Following  is a table of the non cash items  acquired in the 1999  purchases  of
Nance Petroleum Corporation and King Ranch Energy, Inc.:
<TABLE>
<CAPTION>
                                                             Nance    King Ranch
                                                           Petroleum    Energy
                                                           ---------    ------
                                                               (in thousands)
<S>                                                        <C>         <C>
      Accounts receivable & other assets                   $   789     $  9,772
      Property & equipment                                   6,365       25,056
      Accounts payable                                        (642)      (4,490)
      Deferred income taxes                                   (667)      10,426
      Long term debt                                        (3,389)           -
</TABLE>
                   The accompanying notes are an integral part
                   of these consolidated financial statements.

                                      F-6
<PAGE>

              ST. MARY LAND & EXPLORATION COMPANY AND SUBSIDIARIES
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                DECEMBER 31, 1999

1.   Summary of Significant Accounting Policies:

     Description of Operations:

         St. Mary Land & Exploration Company ("St. Mary" or the "Company") is an
independent energy company engaged in the exploration,  development, acquisition
and  production  of natural  gas and crude oil.  In  February  1997 the  Company
completed  the sale of its interest in the Russian  joint  venture.  In December
1998 the Company sold its remaining  interests in properties  located in Canada.
The Company's operations are conducted entirely in the United States.

    Basis of Presentation:

         The  consolidated  financial  statements  include  the  accounts of the
Company  and  its   wholly-owned   subsidiaries.   Subsidiaries   that  are  not
wholly-owned are accounted for using full  consolidation  with minority interest
or by the equity or cost method as  appropriate.  All  significant  intercompany
accounts and transactions have been eliminated.

         The Company  accounts for its investment in Summo Minerals  Corporation
("Summo")  under  the  cost  method  of  accounting.  The  accounting  for  this
investment  was changed  from the equity  method to the cost method in June 1999
due to a  transfer  of  common  shares  that  reduced  the  Company's  ownership
percentage  from 37% to 18%. The Company  accounted  for its  investment  in The
Limited Liability Company Chernogorskoye (the "Russian joint venture") under the
equity method until February 1997, when the Russian joint venture investment was
sold.  The  Company's  interests in other oil and gas ventures and  partnerships
were proportionately  consolidated until September 1999. The Company's interests
are now accounted for using full consolidation with minority interest, including
its 58%  investment in Box Church Gas  Gathering,  LLC and its 90% investment in
Roswell,  LLC. The Company's 74% investment in Panterra  Petroleum  ("Panterra")
was  proportionately  consolidated  until June 1999 when the  remaining  26% was
acquired through the purchase of Nance Petroleum Corporation ("Nance").

    Cash and Cash Equivalents:

         The Company considers all highly liquid  investments  purchased with an
initial  maturity of three months or less to be cash  equivalents.  The carrying
value  of  cash  and  cash  equivalents  approximates  fair  value  because  the
instruments have maturity dates of three months or less.

    Concentration of Credit Risk:

         Substantially  all of the Company's  receivables are within the oil and
gas industry,  primarily from  purchasers of oil and gas and from joint interest
owners. Although diversified within many companies,  collectability is dependent
upon the general  economic  conditions of the industry.  The receivables are not
collateralized and to date, the Company has had minimal bad debts.

         The Company  has  accounts  with  separate  banks in Denver,  Colorado;
Houston,  Texas; and Shreveport,  Louisiana.  At December 31, 1999 and 1998, the
Company had $12,120,000 and $4,697,000,  respectively,  invested in money market
funds consisting of corporate commercial paper,  repurchase  agreements and U.S.
Treasury obligations. The Company's policy is to invest in conservative,  highly
rated  instruments  and to  limit  the  amount  of  credit  exposure  to any one
institution.

                                      F-7
<PAGE>

    Oil and Gas Producing Activities:

         The Company follows the successful efforts method of accounting for its
oil  and  gas  properties.   Under  this  method  of  accounting,  all  property
acquisition costs and costs of exploratory and development wells are capitalized
when  incurred,  pending  determination  of  whether  the well has found  proved
reserves.  If an exploratory  well has not found proved  reserves,  the costs of
drilling  the well are  charged  to  expense.  Exploratory  dry hole  costs  are
included  in cash  flows  from  investing  activities  within  the  consolidated
statements of cash flows. The costs of development wells are capitalized whether
productive or nonproductive.

         Geological and geophysical costs on exploratory prospects and the costs
of carrying and  retaining  unproved  properties  are  expensed as incurred.  An
impairment  allowance  is  provided  on a  property-by-property  basis  when the
Company determines that the unproved property will not be developed.  Depletion,
depreciation  and amortization  ("DD&A") of capitalized  costs of proved oil and
gas  properties  is  provided  on a  field-by-field  basis  using  the  units of
production method based upon proved reserves. The computation of DD&A takes into
consideration   restoration,   dismantlement   and  abandonment  costs  and  the
anticipated  proceeds  from  equipment  salvage.   The  estimated   restoration,
dismantlement  and abandonment  costs for onshore  properties are expected to be
offset by the estimated residual value of lease and well equipment.  The Company
had a recorded offshore  abandonment  liability of $8,627,000 as of December 31,
1999 based on total expected abandonment costs of $10,446,000. This liability is
included in accumulated  DD&A on the  consolidated  balance sheets.  The Company
recorded  $34,000 of offshore  abandonment  liability  accretion as part of DD&A
expense in the consolidated statements of operations for the year ended December
31, 1999.

         The Company reviews its long-lived  assets for impairments  when events
or changes in circumstances  indicate that an impairment may have occurred.  The
impairment  test  compares  the expected  undiscounted  future net revenues on a
field-by-field  basis with the related net capitalized  costs at the end of each
period.  Expected future cash flows are calculated on all proved reserves with a
15% discount rate using escalated prices and including the estimated  effects of
the Company's  hedging  contracts in place at year end. When the net capitalized
costs exceed the undiscounted future net revenue of a property,  the cost of the
property is written down to fair value,  which is  determined  using  discounted
future net revenues.  During 1999, 1998 and 1997 the Company recorded impairment
charges  for  proved  properties  of  $3,982,000,  $17,483,000  and  $5,202,000,
respectively.

Sales of Producing and Nonproducing Properties:

         The sale of a partial interest in a proved property is accounted for as
normal  retirement,  and no gain or loss is recognized as long as this treatment
does not significantly affect the  unit-of-production  amortization rate. A gain
or loss is recognized for all other sales of producing properties.

         The sale of a partial interest in an unproved property is accounted for
as a recovery of cost when substantial  uncertainty exists as to recovery of the
cost  applicable to the interest  retained.  A gain on the sale is recognized to
the extent that the sales  price  exceeds the  carrying  amount of the  unproved
property.

    Other Property and Equipment:

         Other property and equipment is recorded at cost. Costs of renewals and
improvements  that  substantially  extend  the  useful  lives of the  assets are
capitalized. Maintenance and repairs are expensed when incurred. Depreciation is
provided using the  straight-line  method over the estimated useful lives of the
assets from 3 to 15 years.  Gains and losses on  dispositions  of other property
and equipment are included in the results of operations.

    Restricted Cash:

         Proceeds  from certain sales of oil and gas  producing  properties  are
held in escrow and restricted for future  acquisitions under a tax-free exchange
agreement.  These  funds  are  invested  in money  market  funds  consisting  of
corporate commercial paper,  repurchase agreements and U.S. Treasury obligations
and are carried at cost, which approximates market.

                                      F-8
<PAGE>

    Gas Balancing:

         The Company uses the sales method to account for gas imbalances.  Under
this  method,  revenue  is  recorded  on the basis of gas  actually  sold by the
Company.  The Company  records revenue for its share of gas sold by other owners
that  cannot  be  volumetrically  balanced  in the  future  due to  insufficient
remaining reserves. Related receivables totaling $2,209,000 at December 31, 1999
and  $1,928,000  at  December  31,  1998 are  included  in other  assets  in the
accompanying  balance  sheets.  The Company also reduces revenue for gas sold by
the  Company  that  cannot  be  volumetrically  balanced  in the  future  due to
insufficient remaining reserves.  Related payables totaling $733,000 at December
31, 1999 and $872,000 at December 31, 1998 are included in other  liabilities in
the  accompanying  balance sheets.  The Company's  remaining  underproduced  gas
balancing position is included in the Company's proved oil and gas reserves (see
Note 12).

    Financial Instruments:

         The Company periodically uses commodity contracts to hedge or otherwise
reduce  the  impact  of oil and gas  price  fluctuations.  Gains  and  losses on
commodity  hedge  contracts are recognized as an adjustment to revenues when the
related oil or gas is sold.  Cash flows from such  transactions  are included in
oil and gas operations.

         In  connection  with these  hedging  transactions,  the  Company may be
exposed  to  nonperformance  by  other  parties  to  such  agreements,   thereby
subjecting the Company to current oil and gas prices.  However, the Company only
enters into hedging  contracts with large  financial  institutions  and does not
anticipate nonperformance by these institutions.

         In June 1998 the Financial  Accounting  Standards Board ("FASB") issued
Statement of Financial  Accounting  Standards ("SFAS") No. 133,  "Accounting for
Derivative  Instruments  and  Hedging  Activities,"  effective  for  all  fiscal
quarters of fiscal years  beginning  after June 15, 1999.  In June 1999 the FASB
issued  SFAS  No.  137  "Accounting  for  Derivative   Instruments  and  Hedging
Activities - Deferral of the Effective  Date of FASB No. 133" which extended the
effective  date of SFAS No.  133 to all  fiscal  quarters  of all  fiscal  years
beginning  after June 15, 2000. The Statement  requires  companies to report all
derivatives  at fair  value as  either  assets  or  liabilities  and  bases  the
accounting  treatment  of the  derivatives  on the  reasons an entity  holds the
instrument.  The Company is currently  reviewing the effects this Statement will
have  on  the  financial   statements  in  relation  to  the  Company's  hedging
activities.

    Income Taxes:

         Deferred  income taxes are provided on the  difference  between the tax
basis  of an  asset  or  liability  and its  carrying  amount  in the  financial
statements.  This  difference  will result in taxable  income or  deductions  in
future years when the reported  amount of the asset or liability is recovered or
settled, respectively.

    Earnings Per Share:

         Basic net income per common  share of stock is  calculated  by dividing
net income by the  weighted  average of common  shares  outstanding  during each
year. Diluted net income per common share of stock is calculated by dividing net
income by the weighted  average of outstanding  common shares and other dilutive
securities.  Dilutive  securities of the Company consist entirely of outstanding
options to purchase the Company's  common stock. As of December 31, 1999,  there
were  65,678  outstanding  securities  that would be  considered  dilutive.  The
outstanding  dilutive  securities for the years ended December 31, 1998 and 1997
were 66,748 and 132,666, respectively. However, as the Company was in a net loss
position for the year ended December 31, 1998, all of the outstanding options at
that date were  considered  anti-dilutive  and were therefore  excluded from the
diluted  earnings  per  share  calculation.  All net  income of the  Company  is
available to common stockholders.

                                      F-9
<PAGE>

    Stock-Based Compensation:

         The Company accounts for stock-based  compensation  using the intrinsic
value  method  prescribed  in  Accounting   Principles  Board  Opinion  No.  25,
"Accounting for Stock Issued to Employees" ("APB No. 25").  Compensation expense
for stock options,  if any, is measured as the excess of the quoted market price
of the Company's stock at the date of grant over the amount an employee must pay
to acquire the stock.

         SFAS No. 123,  "Accounting for Stock-Based  Compensation,"  established
accounting  and  disclosure  requirements  using a  fair-value-based  method  of
accounting for stock-based employee  compensation plans. The Company has elected
to remain on its  current  method of  accounting  as  described  above,  and has
adopted the disclosure requirements of SFAS No. 123.

    Comprehensive Income:

         In 1998 the  Company  adopted  SFAS No. 130,  "Reporting  Comprehensive
Income." This  statement  establishes  rules for the reporting of  comprehensive
income  and its  components.  Comprehensive  income  consists  of net income and
unrealized gains and losses on marketable equity securities held for sale and is
presented in the consolidated  statements of stockholders'  equity.  The initial
adoption of SFAS No. 130 had no impact on total stockholders' equity. Prior year
financial  statements have been  reclassified to conform to the  requirements of
SFAS No. 130.

    Major Customers:

         During  1999  one  customer  individually  accounted  for  13.3% of the
Company's  total  oil and gas  production  revenue.  During  1998 no  individual
customer accounted for 10% or more of the Company's total oil and gas production
revenue. During 1997 two customers individually accounted for 10.6% and 10.2% of
the Company's total oil and gas production revenue.

    Industry Segment and Geographic Information:

         The Company operates  predominantly in one industry  segment,  which is
the  exploration,  development  and production of natural gas and crude oil, and
all  of  the  Company's   operations   are  conducted  in  the  United   States.
Consequently, the Company currently reports as a single industry segment.

    Use of Estimates in the Preparation of Financial Statements:

         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.

    Reclassifications:

         Certain amounts in the 1998 and 1997 consolidated  financial statements
have been reclassified to correspond to the 1999 presentation.

                                      F-10
<PAGE>

2.   Accounts Receivable:

         Accounts receivable are composed of the following:
<TABLE>
<CAPTION>
                                                          December 31,
                                                   --------------------------
                                                       1999         1998
                                                   ------------- ------------
                                                         (In thousands)

<S>                                                     <C>          <C>
         Accrued oil and gas sales                      $17,672      $ 7,170
         Due from joint interest owners                   3,736        7,868
         Other                                            1,563        2,899
                                                   ------------- ------------
         Total accounts receivable                      $22,971      $17,937
                                                   ============= ============
</TABLE>
3.   Acquisitions

         On June 1,  1999,  the  Company  completed  the  purchase  of Nance and
Quanterra Alpha Limited  Partnership for 259,494 shares of the Company's  common
stock valued at $3,091,000  together with  transaction  costs of $56,000 and the
assumption  of  $3,189,000 of Nance debt.  The  acquisition  included the 26% of
Panterra  the  Company  did  not  previously  own,  as  well  as  certain  other
properties.  The  properties  acquired  are  located in the  Williston  Basin of
Montana and North Dakota. The acquisition was accounted for as a purchase.

         On December 17,  1999,  the Company  completed  the purchase of KRE for
2,666,187 shares of common stock valued at $52,832,000 together with transaction
costs of $2,339,000.  After the acquisition,  KRE's name was changed to St. Mary
Energy Company  ("SMEC").  The acquired  properties are located primarily in the
Gulf of  Mexico  and the  onshore  Gulf  Coast.  The KRE  acquisition  has  been
accounted for by the purchase method of accounting and, accordingly, the results
of  operations  of KRE for the period from  December 17 to December 31, 1999 are
included in the accompanying  consolidated  financial  statements.  The purchase
price has been  preliminarily  allocated  based on estimated  fair values at the
date of acquisition,  pending final  determination of certain acquired balances.
The  following  unaudited  pro  forma  information  presents  a  summary  of the
consolidated  results of  operations as if the  acquisition  had occurred at the
beginning of the periods presented.
<TABLE>
<CAPTION>
                                                           Year                  Year
                                                           Ended                 Ended
                                                       December 31,          December 31,
                                                       ------------          ------------
                                                           1999                  1998
                                                           ----                  ----
                                                               (unaudited, in thousands
                                                               except per share amounts)
<S>                                                   <C>                   <C>
Total operating revenues                              $     118,654         $     118,151
Net income (loss) from continuing operations          $       1,676         $     (7,523)
Basic net income (loss) per share from
       continuing operations                          $        0.17         $      (0.55)
Diluted net income (loss) per share from
       continuing operations                          $        0.17         $      (0.55)
</TABLE>

         These  unaudited pro forma  results have been prepared for  comparative
purposes only and include certain  adjustments  such as reduced  depreciation to
reflect  lower  fair  market  values  assigned  to oil  and gas  properties  and
elimination  of interest  expense for a note payable to the parent  corporation.
They do not purport to be  indicative  of results of  operations  that  actually
would have resulted had the combination occurred at the beginning of the periods
presented, or future results of operations of the consolidated entities.

                                      F-11
<PAGE>

4.   Income Taxes:

         The provision for income taxes consists of the following:
<TABLE>
<CAPTION>
                                                              For the Years Ended
                                                                 December 31,
                                                                 ------------
                                                         1999         1998         1997
                                                         ----         ----         ----
                                                                 (In thousands)
<S>                                                  <C>           <C>          <C>
  Current taxes:
    Federal                                          $       183   $      213   $      485
    State                                                    315          141          972
  Deferred taxes                                            (940)      (5,752)      10,677
  Benefit of deduction for stock option exercises             36            -          443
                                                     -------------------------------------
   Total income tax expense (benefit)                $      (406)  $   (5,398)  $   12,577
                                                     =====================================

  Continuing operations                              $      (406)  $   (5,415)  $   12,325
  Discontinued operations                                      -           17          252
                                                     -------------------------------------
    Total income tax expense (benefit)               $      (406)  $   (5,398)  $   12,577
                                                     =====================================
</TABLE>

         The above taxes from continuing operations are net of alternative fuels
credits (Internal Revenue Code Section 29) of $283,000 in 1999, $315,000 in 1998
and $525,000 in 1997.

         The components of the net deferred tax liability are as follows:
<TABLE>
<CAPTION>
                                                              December 31,
                                                              ------------
                                                            1999        1998
                                                            ----        ----
                                                            (In thousands)
<S>                                                     <C>          <C>
   Deferred tax liabilities:
       Oil and gas properties                           $   3,314    $ 13,194
       Other                                                  581         833
                                                        ----------------------
     Total deferred tax liabilities                         3,895      14,027
                                                        ----------------------
   Deferred tax assets:
       Other, primarily employee benefits                     611         696
       State tax net operating loss carryforward            1,717       1,255
       State and federal income tax benefit                   876         930
       Alternative minimum tax credit carryforward          1,278       1,123
                                                        ----------------------
     Total deferred tax assets                              4,482       4,004
     Valuation allowance                                     (998)     (1,010)
                                                        ----------------------
     Net deferred tax assets                                3,484       2,994
                                                        ----------------------
   Total net deferred tax liabilities                         411      11,033
   Current deferred income tax assets                          90         125
                                                        ----------------------
   Non-current net deferred tax liabilities             $     501    $ 11,158
                                                        ======================
</TABLE>

         In accordance with SFAS 109 the Company records purchase adjustments to
its long-term  deferred income tax liability  accounts.  These  adjustments more
closely  align book and tax basis at the time of  acquisition  and  mitigate the
effect of deferred income tax expense or reduced  deferred income tax benefit on
future net income before income tax from  acquisitions that utilize the purchase
method and that are considered to be tax-free basis transfers for tax accounting
purposes.  During 1999 the Company  adjusted its long-term  deferred  income tax
liability   account  for  a  $667,000  increase  relating  to  its  Nance  stock
acquisition and recorded a $10,426,000  decrease for its KRE stock  acquisition,
as Nance's  book basis was greater  than its tax basis,  and KRE's tax basis was
greater than its book basis.

                                      F-12
<PAGE>

         At  December  31,  1999,  the  Company  had  state net  operating  loss
carryforwards  of approximately  $33,200,000  which expire between 2000 and 2013
and Federal alternative minimum tax credit carryforwards of $1,278,000 which may
be carried forward  indefinitely.  The Company's  valuation allowance relates in
part  to  its  state  net  operating  loss  carryforwards,   since  the  Company
anticipates that a portion of the carryovers from prior years will expire before
they can be utilized,  and in part to a portion of the anticipated state benefit
from  federal  income tax expense  incurred as the  Company's  existing  taxable
temporary  differences  reverse.  The net change in valuation  allowance in 1999
results  from the state  benefit  of  federal  income tax which is now offset by
reversing state temporary differences.

         Federal  income tax expense and  benefit  differs  from the amount that
would be provided by applying  the  statutory  U.S.  Federal  income tax rate to
income before income taxes for the following items:
<TABLE>
<CAPTION>
                                                      For the Years Ended December 31,
                                                      --------------------------------
                                                     1999           1998          1997
                                                     ----           ----          ----
                                                               (In thousands)
<S>                                                <C>          <C>            <C>
  Federal statutory taxes                          $    (137)   $   (4,843)    $  11,881
  Increase (reduction) in taxes resulting from:
     State taxes (net of Federal benefit)                105           191           758
     Statutory depletion                                (110)         (119)         (174)
     Alternative fuels credits (Section 29)             (283)         (315)         (525)
     Change in valuation allowance                       (17)         (289)          401
     Other                                                36           (40)          (16)
                                                   --------------------------------------
 Income tax expense (benefit) from
     continuing operations                         $    (406)   $   (5,415)    $  12,325
                                                   ======================================
</TABLE>

5.   Long-term Debt and Notes Payable:

         On June 30, 1998, the Company entered into a long-term revolving credit
agreement  with a  maximum  loan  amount  of  $200.0  million.  The  lender  may
periodically  re-determine the aggregate borrowing base depending upon the value
of the  Company's  oil and gas  properties  and  other  assets.  In May 1999 the
borrowing base was set at $80.0 million by the lender. At December 31, 1999, the
accepted  borrowing base was $40.0 million.  The credit agreement has a maturity
date of December  31,  2005,  and  includes a revolving  period that  matures on
December  31,  2000.  The Company  can elect to allocate up to 50% of  available
borrowings to a short-term tranche due in 364 days. The Company must comply with
certain covenants including  maintenance of stockholders'  equity at a specified
level and  limitations on additional  indebtedness.  As of December 31, 1999 and
1998, $13.0 million and $10.5 million,  respectively, was outstanding under this
credit agreement. These outstanding balances accrue interest at rates determined
by the Company's debt to total capitalization ratio. During the revolving period
of the loan, loan balances accrue interest at the Company's option of either (a)
the higher of the Federal  Funds Rate plus 1/2% or the prime rate,  or (b) LIBOR
plus 1/2% when the Company's debt to total  capitalization  is less than 30%, up
to a maximum of either (a) the higher of the Federal Funds Rate plus 5/8% or the
prime rate plus 1/8%, or (b) LIBOR plus 1-1/4% when the Company's  debt to total
capitalization  is equal to or greater  than 50%.  At  December  31,  1999,  the
Company's debt to capitalization ratio as defined under the credit agreement was
6.4%.

         Panterra,  in  which  the  Company  owned  a  74%  general  partnership
interest,  maintained a separate credit facility with a $21.0 million  borrowing
base as of December 31, 1998.  Outstanding borrowings under this separate credit
facility were $12.0 million as of December 31, 1998.  St. Mary's  portion of the
December  31,  1998,  outstanding  balance  was $8.9  million.  In June 1999 the
Company  used its  primary  credit  facility  to retire the  balance  due on the
Panterra credit facility.

         The carrying  value of long-term debt  approximates  fair value because
the debt is variable rate and reprices in the short term.

                                      F-13
<PAGE>

         The Company's  estimated  annual  principal  payments  under the credit
agreement for the next five years are as follows:
<TABLE>
<CAPTION>
                   Years Ending
                   December 31,           (In thousands)
              -----------------------   -------------------
<S>                                             <C>
                       2000                     $     -
                       2001                       2,600
                       2002                       2,600
                       2003                       2,600
                       2004                       2,600
                    Thereafter                    2,600
                                           -------------
                      Total                     $13,000
                                           =============
</TABLE>

6.   Commitments and Contingencies:

         The Company  leases  office space under various  operating  leases with
terms  extending  as far as November  30,  2004.  The Company has  noncancelable
annual subleases with affiliates of  approximately  $79,000 for the same term as
the Company's  primary office lease. Rent expense,  net of sublease income,  was
$611,000,  $484,000  and  $447,000  in 1999,  1998 and 1997,  respectively.  The
Company also leases office equipment under various operating leases.  The annual
minimum lease payments for the next five years are presented below:
<TABLE>
<CAPTION>
                  Years Ending
                  December 31,           (In thousands)
             -----------------------   -------------------
<S>                                              <C>
                      2000                       $ 888
                      2001                         891
                      2002                         630
                      2003                         299
                      2004                         101
</TABLE>

         As of December  31,  1999,  the  Company,  as  Operator,  had a turnkey
contract in place with a drilling contractor for the Company's 1999 test well at
South  Horseshoe  Bayou.  St.  Mary's  obligation  to pay  $5.6  million  to the
contractor  was  contingent  upon the well  reaching a depth of 16,000 feet.  In
February 2000 the well reached the specified depth, and St. Mary paid the amount
due under the  contract.  The  Company's  net share of the amount paid under the
contract was $2.3 million

         The Company  realized a net loss of $2,561,000  on commodity  contracts
for the year ended  December  31, 1999,  a net gain of  $1,873,000  for the year
ended  December  31,  1998,  and a net loss of  $3,242,000  for the  year  ended
December 31, 1997.

                                      F-14
<PAGE>

         The  Company  had the  following  commodity  contracts  in  place as of
December 31, 1999, to hedge or otherwise  reduce the impact of oil and gas price
fluctuations:
<TABLE>
<CAPTION>
Swaps
- -----
                            Average
                            -------
Product                  Volumes/month            Fixed Price        Duration
- -------                  -------------            -----------        --------
<S>                      <C>                     <C>               <C>
Natural Gas               30,000 MMBtu            $2.4633          1/00 -  6/01
Natural Gas              250,000 MMBtu            $2.4150          1/00 - 12/00
Natural Gas              250,000 MMBtu            $2.5000          1/00 - 12/00
Natural Gas               15,000 MMBtu            $2.1800          1/00 - 12/00
Natural Gas               37,000 MMBtu            $2.2100          1/00 - 12/00
Natural Gas               13,000 MMBtu            $2.3000          1/00 - 12/00
Natural Gas               18,000 MMBtu            $2.2600          1/00 - 12/00
Oil                         4,000 Bbls           $15.2078          1/00 -  5/01
Oil                         7,000 Bbls           $16.3000          1/00 - 12/00
Oil                         7,500 Bbls           $14.7500          1/00 - 12/00
Oil                         7,000 Bbls           $21.0500          1/00 - 12/00
Oil                        15,000 Bbls           $27.0118          1/00 - 12/00
Oil                        10,000 Bbls           $23.1432          3/00 -  7/00
</TABLE>
<TABLE>
<CAPTION>
Collars
- -------
                    Average
                    -------
Product          Volumes/month   Ceiling Price     Floor Price    Duration
- -------          -------------   -------------     -----------    --------
<S>              <C>               <C>               <C>            <C>
Natural Gas      200,000 MMBtu      $2.6500           $2.0000       1/00 - 12/00
Natural Gas      150,000 MMBtu      $2.5000           $2.0000       1/00 - 12/00
Natural Gas      199,000 MMBtu      $2.9400           $2.3000       1/00 - 12/00
Natural Gas      197,000 MMBtu      $2.9000           $2.3000       1/00 - 12/00
Natural Gas      150,000 MMBtu      $2.9400           $2.3000       1/01 - 12/01
Natural Gas      150,000 MMBtu      $2.9000           $2.3000       1/01 - 12/01
Natural Gas      250,000 MMBtu      $2.8775           $2.3540       1/01 - 12/01
Natural Gas      250,000 MMBtu      $2.8192           $2.3540       1/01 - 12/01
Oil                 7,000 Bbls     $17.7500          $17.5000       1/00 - 12/00
Oil                 7,000 Bbls     $21.0000          $18.0000       1/00 - 12/00
Oil                10,000 Bbls     $20.6400          $16.4400       1/00 - 12/00
Oil                10,000 Bbls     $20.9000          $16.7000       1/00 - 12/00
Oil                10,000 Bbls     $25.1000          $19.5000       1/00 - 12/00
Oil                12,500 Bbls     $27.0000          $17.0000       1/00 - 12/00
Oil                 7,500 Bbls     $20.6400          $16.4400       1/01 - 12/01
Oil                 7,500 Bbls     $20.9000          $16.7000       1/01 - 12/01
</TABLE>
         The fair value of the Company's  commodity  hedging  contracts based on
year-end  futures  pricing  would have caused the  Company to pay  approximately
$2,299,000 if these contracts had been terminated on December 31, 1999.

         The  Company  seeks to protect  its rate of return on  acquisitions  of
producing  properties  by hedging up to the first 24 months of an  acquisition's
production  at prices  approximately  equal to or greater than those used in the
Company's   acquisition   evaluation  and  pricing   model.   The  Company  also
periodically  uses hedging  contracts to hedge or otherwise reduce the impact of
oil and gas price  fluctuations  on production  from each of its core  operating
areas.  The Company's  strategy is to ensure certain minimum levels of operating
cash flow and to take advantage of windows of favorable  commodity  prices.  The
Company generally attempts to limit its aggregate hedge position to no more than
50% of its total  production.  The  Company  seeks to  minimize  basis  risk and
indexes the  majority of its oil hedges to NYMEX  prices and the majority of its
gas hedges to  various  regional  index  prices  associated  with  pipelines  in
proximity to the Company's  areas of gas  production.  Including  hedges entered
into since December 31, 1999, and those detailed  above,  the Company has hedged
as follows:

                                      F-15
<PAGE>
<TABLE>
<CAPTION>
Swaps:
- ------
                                 Average
                                 -------
         Year    Product        Percentage    Fixed Price         Pricing
         ----    -------        ----------    -----------         -------
<S>              <C>               <C>            <C>             <C>
         2000    Natural Gas       17%            $2.4269         MMBtu
         2001    Natural Gas       <1%            $2.4633         MMBtu
         2000    Oil               22%            $20.9634        Bbl
         2001    Oil                1%            $15.7600        Bbl
</TABLE>
<TABLE>
<CAPTION>
Collars:
- --------
                                               Highest         Lowest
                                               -------         ------
         Year    Product         Percentage    Ceiling Price   Floor Price   Pricing
         ----    -------         ----------    -------------   -----------   -------
<S>              <C>                <C>        <C>             <C>           <C>
         2000    Natural Gas        21%        $2.9400         $2.0000       MMBtu
         2001    Natural Gas        22%        $2.9400         $2.3000       MMBtu
         2000    Oil                27%        $27.0000        $16.4400      Bbl
         2001    Oil                 7%        $20.9000        $16.4400      Bbl
</TABLE>
7.   Compensation Plans:

         In January  1992 the  Company  adopted two  compensation  plans for key
employees.  A cash bonus plan allows  participants to receive up to 50% of their
aggregate  base  salary.  Any awards  under the cash bonus  plans are based on a
combination of company and individual  performance.  The Company accrued $71,000
for cash  bonuses  in 1998  that  were  paid in 1999,  and the  Company  accrued
$2,293,000  for cash bonuses in 1999 to be paid in 2000. A net profits  interest
bonus plan allows  participants to receive an aggregate 10% net profits interest
after the Company has recovered  100% of its  investment in various pools of oil
and gas wells completed or acquired during a given year. This interest increases
to 20% after the Company  recovers 200% of its  investment.  The Company records
compensation   expense  once  it  recovers  its   investment   and  net  profits
attributable  to the  properties  are  payable  to the  employees.  The  Company
recorded  compensation expense of $574,000 in 1999 and $229,000 in 1998 relating
to net profits attributable to these properties.

         Through  September  1992 the Company had a restricted  stock bonus plan
("Plan")  covering  officers and key employees.  Participants have the option at
any time to sell  shares  acquired  under the Plan to the  Company at their fair
market  values.  At  December  31,  1999,  there were 24,785  shares  issued and
outstanding under the Plan.

         In March 1992 the Company adopted a stock  appreciation  rights ("SAR")
plan for officers and directors. SARs vest over a four-year period, with payment
occurring  five  years  after  the  date of  grant.  The SAR plan  replaced  the
restricted  stock bonus plan.  Between 1993 and 1996 the Company awarded a total
of 171,412  share  rights with values  ranging  from $11.50 to $14.00 per share.
Compensation  expense  recognized  under the SAR plan was  $280,000  in 1999 and
$161,000 in 1997. Compensation expense was reduced by $197,000 in 1998 under the
SAR plan.  In  November  1996 the Company  terminated  future  awards  under the
Company's  SAR plan and capped the value of the share  rights under the SAR plan
at the then fair market value of the Company's common stock of $20.50 per share.
The  resulting   liability  is  classified  as  current  and  long-term  in  the
consolidated  balance sheets,  based on expected payment dates. SAR compensation
expense  recorded after the  termination of future awards relates to the vesting
of SARs  outstanding at the time of the  termination of future awards and to the
fluctuation of the stock price below the capped price of $20.50.

                                      F-16
<PAGE>

         The Company has a defined  contribution  pension plan  ("401(k)  Plan")
which is subject to the Employee  Retirement  Income  Security Act of 1974.  The
401(k) Plan  allows  eligible  employees  to  contribute  up to 9% of their base
salaries.  The Company  matches each  employee's  contributions  up to 6% of the
employee's  base  salary  and  also  may make  additional  contributions  at its
discretion. The Company's contributions to the 401(k) Plan amounted to $288,000,
$269,000,  and $231,000 for the years ended  December 31, 1999,  1998, and 1997,
respectively.

         In September  1997 the Board of Directors  approved the St. Mary Land &
Exploration Company Employee Stock Purchase Plan ("Stock Purchase Plan"),  which
became  effective  January  1,  1998.  Under the Stock  Purchase  Plan  eligible
employees  may purchase  shares of the Company's  common stock  through  payroll
deductions  of up to 15% of eligible  compensation.  The  purchase  price of the
stock is 85% of the lower of the fair market  value of the stock on the first or
last day of the purchase period.  The Stock Purchase Plan is intended to qualify
under  Section  423 of the  Internal  Revenue  Code.  The  Company has set aside
500,000  shares of its common stock to be available for issuance under the Stock
Purchase  Plan.  In 1999 and 1998 shares  issued under the Stock  Purchase  Plan
totaled  16,397 and 8,424,  respectively.  Total proceeds to the Company for the
issuance  of  these   shares  was  $258,000  and  $173,000  in  1999  and  1998,
respectively.  The Company recorded  compensation expense of $20,000 in 1999 due
to  nonqualified  dispositions  of stock  acquired by employees  under the Stock
Purchase Plan. No compensation expense was recorded in 1998 related to the Stock
Purchase Plan.

         In 1990  and 1991 the  Company  granted  certain  officers  options  to
acquire  54,614 shares of common stock at an exercise  price of $3.30 per share.
The options are now fully vested and expire ten years from the respective  dates
of grant.  In 1997 34,614 of these  options were  exercised and in 1999 5,000 of
these options were exercised.  There were 15,000 of these options outstanding at
December 31, 1999.

         In 1996 the Company established the St. Mary Land & Exploration Company
Stock Option Plan and the St. Mary Land & Exploration  Company  Incentive  Stock
Option Plan (collectively,  the "Option Plans").  The Option Plans grant options
to  purchase  shares  of the  Company's  common  stock  to  eligible  employees,
contractors,  and current and former members of the Board of Directors.  In 1999
the  stockholders  approved an increase in the number of shares of the Company's
common stock reserved for issuance under the Option Plans from 700,000 shares to
1,650,000 shares. In 1997 participants exercised 14,072 options under the Option
Plans at $20.50 per share,  and an  additional  74,057 and 109,781  options were
granted at $29.375  and $35.00  per  share,  respectively.  In 1998 the  Company
granted 251,774 options at an exercise price of $18.50 per share, and no options
were  exercised  under the Option  Plans.  In 1999 the Company  granted  311,746
options  at an  exercise  price of $24.75  per  share,  and 3,830  options  were
exercised  under the Option Plans.  All options granted to date under the Option
Plans have been granted at exercise prices equal to the respective market prices
of the Company's common stock on the grant dates.

                                      F-17
<PAGE>

         A summary of the status of the Company's Stock Option Plans,  including
the 1990 and 1991 options and changes during the last three years follows:
<TABLE>
<CAPTION>
                                                              For the Years Ended December 31,
                                        ------------------------------------------------------------------------------
                                                  1999                       1998                      1997
                                        -------------------------- ------------------------- -------------------------
                                                       Weighted                  Weighted                  Weighted
                                                        Average                   Average                   Average
                                                       Exercise                  Exercise                  Exercise
                                           Shares        Price       Shares        Price       Shares        Price
                                        ------------- ------------ ------------ ------------ ------------ ------------

<S>                                          <C>          <C>          <C>          <C>          <C>          <C>
Outstanding at beginning of year             721,218      $ 22.55      479,343      $ 24.80      354,092      $ 18.38

Granted                                      311,746        24.75      251,774        18.50      183,838        32.79
Exercised                                      8,830         9.89            -            -       48,686         8.27
Forfeited                                     25,007        26.42        9,899        28.63        9,901        15.62
                                        -------------              ------------              ------------
Outstanding at end of year                   999,127        23.25      721,218        22.55      479,343        24.80
                                        =============              ============              ============

Options exercisable at year end              325,938        20.65      164,670        18.41      129,173        17.84
                                        =============              ============              ============

Weighted average fair value of
     options granted during the year         $ 10.25                   $  8.16                   $ 15.05
                                        =============              ============              ============
</TABLE>

      A summary of additional  information related to the options outstanding as
of December 31, 1999 follows:
<TABLE>
<CAPTION>
                                                 Options Outstanding                     Options Exercisable
                                  ------------------------------------------------- ------------------------------
                                                        Weighted
                                                        Average         Weighted                       Weighted
                                                       Remaining        Average                        Average
          Range of                     Number         Contractual       Exercise        Number         Exercise
       Exercise Prices               Outstanding          Life           Price        Exercisable       Price
- ------------------------------    ----------------- ---------------- -------------- --------------- --------------
<S>    <C>             <C>                 <C>         <C>                  <C>            <C>             <C>
       $ 3.30  -       $ 3.30               15,000     1.0 year             $ 3.30          15,000         $ 3.30
        18.50  -        20.50              470,272     6.5 years             19.49         233,001          20.50
        24.75  -        29.38              418,818     9.2 years             25.51          77,937          24.75
        35.00  -        35.00               95,037     8.0 years             35.00               -              -
                                  -----------------                                 ---------------
 Total                                     999,127     7.7 years             23.25         325,938          20.72
                                  =================                                 ===============
</TABLE>

         SFAS  No.  123  establishes  a fair  value  method  of  accounting  for
stock-based  compensation  plans either through  recognition or disclosure.  The
Company accounts for stock-based  compensation  under APB No. 25 and has elected
to adopt SFAS No. 123 through  compliance with the disclosure  requirements  set
forth in the  Statement.  Because the exercise  price of the Company's  employee
stock  options  equals the market price of the  underlying  stock on the date of
grant,  no  compensation  expense  is  recognized  under APB No.  25.  Pro forma
information  regarding net income and earnings per share is required by SFAS No.
123 and has been  determined  as if the Company had  accounted  for its employee
stock options under the fair value method of that Statement.

                                      F-18
<PAGE>

         The fair value of options is  measured  at the date of grant  using the
Black-Scholes  option-pricing  model.  The fair value of the options  granted in
1999 was estimated using the following weighted-average  assumptions:  risk-free
interest  rate of  6.42%;  dividend  yield of  0.82%;  volatility  factor of the
expected market price of the Company's common stock of 41.52%; and expected life
of the  options  of 4.8 years.  The fair  value of  options  granted in 1998 was
estimated using the following weighted-average  assumptions:  risk-free interest
rate of 4.6%; dividend yield of 1.08%;  volatility factor of the expected market
price of the Company's common stock of 40.16%;  and expected life of the options
of 7.5 years.  The fair value of options granted in 1997 was estimated using the
following  weighted-average  assumptions:   risk-free  interest  rate  of  5.7%;
dividend yield of 0.49%;  volatility  factor of the expected market price of the
Company's common stock of 37.29%; and expected life of the options of 7.1 years.

         The  Black-Scholes  option  valuation  model was  developed  for use in
estimating  the fair value of traded  options that have no vesting  restrictions
and are fully  transferable.  In addition,  option  valuation models require the
input of highly  subjective  assumptions  including  the  expected  stock  price
volatility.  Because the Company's  employee stock options have  characteristics
significantly different from those of traded options, and because changes in the
subjective input assumptions can materially  affect the fair value estimate,  it
is management's  opinion that the existing  models do not necessarily  provide a
reliable single measure of the fair value of its employee stock options.

         For purposes of pro forma disclosures,  the estimated fair value of the
options  is  amortized  to  expense  over  the  options'  vesting  period.   Had
compensation  cost been  determined  based on the fair value at grant  dates for
stock option awards  consistent  with SFAS No. 123, the Company's net income and
earnings  per share would have been reduced to the pro forma  amounts  indicated
below:
<TABLE>
<CAPTION>
                                                                Pro Forma for the Years
                                                                  Ended December 31,
                                                       ------------------------------------------
                                                            1999          1998         1997
                                                       ------------------------------------------
                                                                (In thousands, except
                                                                  per share amounts)

<S>                                                      <C>          <C>           <C>
 Net income (loss) applicable         As reported        $      82    $ (8,797)     $ 23,109
        to common stock               Pro forma          $  (1,530)   $ (9,682)     $ 22,443

 Basic earnings (loss) per share      As reported        $     .01    $   (.81)     $   2.18
                                      Pro forma          $   (0.14)   $   (.89)     $   2.11

 Diluted earnings (loss) per share    As reported        $     .01    $   (.81)     $   2.15
                                      Pro forma          $   (0.14)   $   (.89)     $   2.09
</TABLE>

         The effects of applying  SFAS No. 123 in the pro forma  disclosure  are
not necessarily  indicative of actual future amounts,  and SFAS No. 123 does not
apply to awards  granted  prior to 1995.  Additional  awards in future years are
anticipated.

                                      F-19
<PAGE>

8.   Pension and Other Postretirement Benefits

         The Company's employees participate in a non-contributory  pension plan
covering  substantially all employees who meet age and service requirements (the
qualified  plan). The Company also has a supplemental  non-contributory  pension
plan  covering  certain  management  employees  (the  nonqualified  plan)  and a
postretirement  non-contributory  health care plan.  The  Company's  disclosures
about pension and other postretirement benefits are as follows:
<TABLE>
<CAPTION>
                                                                 Pension Plans           Other Benefits
                                                                  December 31,             December 31,
                                                                  ------------             ------------
                                                              1999          1998        1999         1998
                                                              ----          ----        ----         ----
                                                                 (In thousands)           (In thousands)
 <S>                                                         <C>          <C>          <C>          <C>
    Change in benefit obligations:
        Benefit obligation at beginning of year              $  2,470     $  1,926     $    185     $    141
             Service Cost                                         178          201           25           24
             Interest Cost                                        172          151           11           11
             Actuarial gain (loss)                                (84)         472          (63)           9
             Benefits paid                                       (148)        (280)           -            -
                                                             ------------------------------------------------
        Benefit obligation at end of year                    $  2,588     $  2,470     $    158     $    185
                                                             ================================================
     Change in plan assets:

        Fair value of plan assets at beginning of year       $  1,212     $    932     $      -     $      -
             Actual return on plan assets                         165          179            -            -
             Employer contribution                                363          381            -            -
        Benefits paid                                            (148)        (280)           -            -
                                                             ------------------------------------------------
        Fair value of plan assets at end of year             $  1,592     $  1,212     $      -     $      -
                                                             ================================================

     Funded Status                                           $   (996)     $(1,258)    $   (158)    $   (185)
     Unrecognized net actuarial loss                              615          867           (1)          64
     Unrecognized prior service cost                              (36)         (43)           -            -
                                                             ------------------------------------------------
     Prepaid (accrued) benefit cost                          $   (417)    $   (434)    $   (159)    $   (121)
                                                             ================================================
</TABLE>

         The Company's  nonqualified pension plan was the only pension plan with
an  accumulated  benefit  obligation  in  excess  of  plan  assets.  The  plan's
accumulated  benefit  obligation was $300,000 at December 31, 1999, and $274,000
at December 31, 1998. There are no plan assets in the  nonqualified  plan due to
the nature of the plan.  The Company's  other plan for  postretirement  benefits
also has no plan  assets.  The  aggregate  benefit  obligation  for that plan is
$159,000 as of December 31, 1999, and $121,000 as of December 31, 1998.

         Assumptions used in the measurement of the Company's benefit obligation
are as follows:
<TABLE>
<CAPTION>
                                                Pension Plans           Other Benefits
                                                December 31,             December 31,
                                                ------------             ------------
                                             1999          1998        1999         1998
                                             ----          ----        ----         ----
                                             (In thousands)           (In thousands)
<S>                                         <C>           <C>         <C>          <C>
 Weighted-average assumptions:
      Discount rate                         8.00%         6.50%       6.50%        7.00%
      Expected return on plan assets        8.00%         8.00%         N/A          N/A
      Rate of compensation increase         5.00%         5.00%         N/A          N/A
</TABLE>

                                      F-20
<PAGE>

         For  measurement  purposes,  an 8% annual  rate of  increase in the per
capita cost of covered  health care benefits was assumed for 2000.  The rate was
assumed to  decrease  gradually  to 6 percent  for 2003 and remain at that level
thereafter.
<TABLE>
<CAPTION>
                                                        Pension Plans                  Other Benefits
                                                         December 31,                    December 31,
                                                         ------------                    ------------
                                                 1999       1998       1997        1999       1998     1997
                                                 ----       ----       ----        ----       ----     ----
                                                        (In thousands)                  (In thousands)
<S>                                              <C>        <C>        <C>       <C>        <C>       <C>
Components of net periodic benefit cost:
     Service cost                                $  178     $  201     $  192    $     25   $     24  $     19
     Interest cost                                  172        151        100          11         11         9
     Expected return on plan assets                 (88)      (179)       (84)          -          -         -
     Amortization of prior service cost              83        174         21           -          -         -
     Recognized net actuarial loss                   -          -          -            2          2         2
                                                 -------------------------------------------------------------
     Net periodic benefit cost                   $  345     $  347     $  229     $     38   $     37  $    30
                                                 =============================================================
</TABLE>

         Prior  service costs are  amortized on a  straight-line  basis over the
average  remaining  service period of active  participants.  Gains and losses in
excess of 10% of the greater of the benefit  obligation  and the  market-related
value of assets are  amortized  over the  average  remaining  service  period of
active participants.

         The  Company  has  one  nonpension   postretirement   benefit  plan;  a
noncontributory health care plan.

         Assumed  health care cost trend rates have a significant  effect on the
amounts  reported for the health care plan.  A 1% change in assumed  health care
cost trend rates would have the following effects (in thousands):
<TABLE>
<CAPTION>
                                                                1% Increase        1% Decrease
                                                                -----------        -----------
<S>                                                               <C>                <C>
Effect on total of service and interest cost components
    of net periodic postretirement health care benefit cost       $    9             $    7

Effect on the health care component of the accumulated
    postretirement benefit obligation                             $   29             $   23
</TABLE>

9.   Sale of Oklahoma Properties:

         On  December  15,  1998,  the  Company  closed the sale of a package of
non-strategic  properties  to ONEOK  Resources  Company for a purchase  price of
$22,201,000.   The  Company  received  $22,117,000  in  cash  proceeds,  net  of
transaction   costs  and   customary   closing   adjustments   made  to  reflect
post-effective  date  revenues and expenses.  The  transaction  was  consummated
pursuant to a Purchase and Sale Agreement dated November 12, 1998,  effective as
of September 1, 1998. The assets sold consist of producing oil and gas wells and
undeveloped  leasehold  acreage within eight fields located in Beckham and Roger
Mills counties, Oklahoma.

         The  majority  of the  proceeds  from this  property  sale were used to
reduce the Company's  outstanding bank debt in anticipation of re-deploying this
capital in the Company's drilling, exploration and acquisition programs in 1999.

                                      F-21
<PAGE>

10.   Investment in Russian Joint Venture:

         In  September  1991 the Company  acquired a 22% interest in The Limited
Liability      Company      Chernogorskoye      through      Anderman      Smith
International-Chernogorskoye  Partnership (the "Partnership"),  collectively the
"Russian   joint   venture."  The  Russian  joint  venture  is  developing   the
Chernogorskoye  field in western Siberia.  The Company's interest in the Russian
joint  venture was reduced to 18% in 1993.  On December  16,  1996,  the Company
executed an  Acquisition  Agreement  to sell its  interest in the Russian  joint
venture to Khanty  Mansiysk Oil  Corporation  ("KMOC"),  formerly Ural Petroleum
Corporation.  In accordance  with the terms of the  Acquisition  Agreement,  the
Company received cash consideration of $5,608,000 before transaction costs, KMOC
common stock valued at  $1,869,000,  and a receivable in a form  equivalent to a
retained  production  payment of approximately  $11,217,000 plus interest at 10%
per annum from the limited  liability  company  formed to hold the Russian joint
venture  interest.  The Company  has accrued an  obligation  of  $1,083,000  for
commissions to be paid when proceeds are received on the receivable  leaving net
proceeds of  $10,134,000.  The  Company's  receivable is  collateralized  by the
Partnership  interest sold. The transaction closed on February 12, 1997, and the
Company  recorded  a gain on the sale of  $9,671,000.  The  Company's  equity in
income for the  Russian  joint  venture  for 1997  through  the date of sale was
$203,000.  In 1998 uncertain economic  conditions in Russia and lower oil prices
affected the  realizability  of the  convertible  receivable.  As a result,  the
Company reduced the carrying amount of the receivable to its minimum  conversion
value,  incurring  a charge  to  operations  of  $4,553,000  for the year  ended
December  31,  1998.  In  August  1999  the  Company  sold  Chelsea  Corporation
("Chelsea"),  the  subsidiary  that held the  Company's  original  common  stock
investment  in  KMOC.  The  Company  received  proceeds  of  $2,019,000,  net of
transaction costs of $119,000,  resulting in a gain of $150,000. The KMOC common
stock was Chelsea's  only asset.  As of December 31, 1999 the Company still held
the receivable from KMOC which was recorded at its minimum  conversion  value of
$5,110,000.  On February  10,  2000,  the Company  elected to convert all of its
receivable into additional shares of KMOC stock.

11.   Summo Minerals Corporation Investment and Receivable:

         As of December 31, 1999 and 1998,  the Company owned  4,962,046  shares
(18% of total shares  outstanding)  and  9,924,093  common  shares (37% of total
shares outstanding) of Summo, a North American mining company, with a total cost
of $3,799,000 and $5,859,000,  respectively.  The recorded net book value of the
stock  was  $255,000  and zero at  December  31,  1999 and  1998,  respectively.
Included  in the  net  book  value  was  unrealized  gain on  marketable  equity
securities of $284,000 for December 31, 1999 and zero at December 31, 1998.  The
Company  also owned  warrants to acquire an  additional  17,500,000  and 616,090
shares of Summo common stock as of December 31, 1999 and 1998, respectively. The
market value of the Company's  investment in Summo common stock was $412,000 and
$705, 000 at December 31, 1999 and 1998,  respectively.  As of December 31, 1999
and 1998,  the  Company  held a note  receivable  from Summo of  $1,400,000  and
$2,869,000,  respectively.  The loan is secured by Summo's  interest  in Summo's
Lisbon Valley Copper Project and bears interest at LIBOR plus 2.5%.

         In  June  1999  the  Company   participated  in  a  financing   package
arrangement  with Summo and  Resource  Capital  Fund L.P.  ("RCF").  The Company
received  $2,096,000 cash and 17,500,000 Summo warrants in exchange for reducing
the Company's note receivable from Summo and transferring 4,962,047 Summo common
shares to RCF. The warrants  have an exercise  price of CDN$0.12 per share,  are
fully  vested and expire on June 25,  2004.  No value has been  assigned  to the
warrants in the financial statements. Management believes the note receivable is
realizable.  As a result of the new  financing  arrangement,  the Company is not
obligated to fund any future loans to Summo. The Company  continuously  analyzes
its net investment in Summo and the effect of copper prices and worldwide copper
inventory levels on Summo's stock price.

                                      F-22
<PAGE>

         The  transfer  of Summo  common  shares to RCF  reduced  the  Company's
ownership percentage in Summo from 37% to 18%. Consequently,  the accounting for
this  investment  was changed from the equity  method to the cost method in June
1999.  For the years  ended  December  31, 1998 and 1997,  the Company  reported
equity in losses from Summo of $661,000 and $526,000,  respectively. The Company
recorded  $58,000 of equity in Summo's  losses in 1999  through the  transaction
date  under the  equity  method.  Under the cost  method,  the  Company  records
unrealized gains or losses resulting from the fluctuation in the market price of
Summo's  common  stock  as  a  component  of  comprehensive  income  within  the
consolidated  statements of stockholders' equity.  Unrealized losses can only be
recorded to the extent of the  Company's  investment,  which  includes  the note
receivable  from Summo as well as the Summo common shares and warrants owned. As
a result of changing to the cost method for the investment in Summo, the Company
recorded an unrealized  gain of $195,000 in June 1999. The unrealized gain as of
December 31, 1999 was $284,000.  This represents the difference in trading value
of the Company's  ownership in Summo common stock and the recorded  basis of the
common stock owned by the Company, net of taxes.

         In January 2000,  Summo issued  1,016,594 shares of its common stock to
the Company as payment of interest on the company's note  receivable from Summo.
Due to the receipt of these shares, the Company's ownership percentage increased
to 19%.

12.   Disclosures About Oil and Gas Producing Activities:

Costs Incurred in Oil and Gas Producing Activities:

         Costs  incurred in oil and gas property  acquisition,  exploration  and
development  activities,  whether  capitalized  or expensed,  are  summarized as
follows:
<TABLE>
<CAPTION>
                                        For the Years Ended
                                            December 31,
                                            ------------
                                 1999          1998           1997
                                 ----          ----           ----
                                          (In thousands)
<S>                            <C>           <C>             <C>
    Development costs          $ 22,166      $ 32,191        $ 39,030
    Exploration costs:
      Domestic                   20,809        17,767          15,311
      International                   -             -              16
    Acquisitions:
      Proved                     33,080         4,204          27,291
      Unproved                   15,129         3,693           7,565
                               --------------------------------------
    Total                      $ 91,184      $ 57,855        $ 89,213
                               ======================================
</TABLE>

Oil and Gas Reserve Quantities (Unaudited):

         The reserve  information  as of December 31, 1999,  1998,  and 1997 was
prepared  by Ryder Scott  Company and St.  Mary.  The  Company  emphasizes  that
reserve estimates are inherently imprecise and that estimates of new discoveries
are more  imprecise  than  those of  proved  producing  oil and gas  properties.
Accordingly,  these  estimates  are  expected  to change  as future  information
becomes available.

         Proved oil and gas reserves are the estimated  quantities of crude oil,
natural gas and  natural  gas liquids  which  geological  and  engineering  data
demonstrate  with  reasonable  certainty to be  recoverable in future years from
known  reservoirs  under  existing  economic and  operating  conditions.  Proved
developed  oil and gas  reserves  are those  expected  to be  recovered  through
existing wells with existing equipment and operating methods.

                                      F-23
<PAGE>

         Presented  below is a summary  of the  changes  in  estimated  domestic
reserves of the Company:
<TABLE>
<CAPTION>
                                                             For the Years Ended December 31,
                                                             --------------------------------
                                                     1999                  1998                  1997
                                                     ----                  ----                  ----
                                                    Oil or                Oil or                Oil or
                                               Condensate    Gas     Condensate    Gas    Condensate     Gas
                                               ----------    ---     ----------    ---    ----------     ---
                                               (MBbl)    (MMcf)      (MBbl)    (MMcf)      (MBbl)    (MMcf)
<S>                                             <C>       <C>         <C>       <C>         <C>       <C>
Total proved U.S. reserves:
         Developed and undeveloped:
         Beginning of year                       8,614    132,605     11,493    196,230     10,691    127,057
         Revisions of previous estimates         3,308    (10,445)    (2,437)   (42,430)      (502)    (7,486)
         Discoveries and extensions              2,062     43,501        336     38,744      1,203     77,876
         Purchases of minerals in place          6,323     65,129        679      1,225      1,328     24,809
         Sales of reserves                         (24)      (343)      (182)   (35,724)       (39)    (3,126)
         Production                             (1,383)   (22,805)    (1,275)   (25,440)    (1,188)   (22,900)
                                                --------------------------------------------------------------
         End of year (a)                        18,900    207,642      8,614    132,605     11,493    196,230
                                                ==============================================================
Proved developed U.S. reserves:
         Beginning of year                       7,723    112,189     10,268    168,229     10,015    100,027
                                                ==============================================================
         End of year                            16,688    169,379      7,723    112,189     10,268    168,229
                                                ==============================================================
</TABLE>
[FN]
- ---------
(a)      At December  31, 1999,  1998 and 1997,  includes  approximately  1,802,
         2,022,  and  1,982  MMcf,   respectively   representing  the  Company's
         underproduced gas balancing position.
</FN>

Standardized Measure of Discounted Future Net Cash Flows (Unaudited):

         SFAS No.  69,  "Disclosures  About Oil and Gas  Producing  Activities,"
prescribes  guidelines for computing a  standardized  measure of future net cash
flows and changes therein relating to estimated proved reserves. The Company has
followed these guidelines which are briefly discussed below.

         Future cash inflows and future  production  and  development  costs are
determined by applying benchmark prices and costs, including  transportation and
basis differential,  in effect at year-end to the year-end estimated  quantities
of oil and gas to be produced in the future.  Estimated  future income taxes are
computed using current statutory income tax rates,  including  consideration for
estimated  future  statutory  depletion and alternative  fuels tax credits.  The
resulting future net cash flows are reduced to present value amounts by applying
a 10% annual discount factor.

         The  assumptions  used to compute  the  standardized  measure are those
prescribed  by the FASB and, as such, do not  necessarily  reflect the Company's
expectations  of actual  revenues to be derived from those  reserves,  nor their
present  worth.  The  limitations  inherent in the reserve  quantity  estimation
process,  as discussed  previously,  are equally  applicable to the standardized
measure  computations  since  these  estimates  are the basis for the  valuation
process.

                                      F-24
<PAGE>

         The following  summary sets forth the  Company's  future net cash flows
relating  to  proved  oil and gas  reserves  based on the  standardized  measure
prescribed in SFAS No. 69:
<TABLE>
<CAPTION>
                                                          For the Years Ended
                                                              December 31,
                                                              ------------
                                                 1999             1998           1997
                                                 ----             ----           ----
                                                             (In thousands)
<S>                                                <C>           <C>           <C>
Future cash inflows                                $ 900,199     $ 328,630     $ 629,001
     Future production and
       development costs                            (344,350)     (128,120)     (202,503)
     Future income taxes                            (150,239)      (39,471)     (120,742)
                                                   --------------------------------------
Future net cash flows                                405,610       161,039       305,756
10% annual discount                                 (144,296)      (59,093)     (118,409)
                                                   --------------------------------------
Standardized measure of
     discounted future net cash flows              $ 261,314     $ 101,946     $ 187,347
                                                   ======================================
</TABLE>
         The  principle  sources  of  change  in  the  standardized  measure  of
discounted future net cash flows are as follows:
<TABLE>
<CAPTION>
                                                                    For the Years Ended
                                                                       December 31,
                                                                       ------------
                                                             1999          1998      1997
                                                             ----          ----      ----
                                                                      (In thousands)
<S>                                                       <C>          <C>            <C>
Standardized measure,
     beginning of year                                    $  101,946   $  187,347     $ 203,230
Sales of oil and gas produced,
     net of production costs                                 (53,814)     (53,643)      (60,506)
Net changes in prices and
     production costs                                         82,976      (78,974)     (132,465)
Extensions, discoveries and other,
     net of production costs                                  76,198       36,495       112,698
Purchase of minerals in place                                105,728        5,548        40,647
Development costs incurred
     during the year                                           5,816       12,964        11,305
Changes in estimated future
     development costs                                       (25,281)       1,641        (2,998)
Revisions of previous quantity estimates                      10,976      (39,303)       (8,885)
Accretion of discount                                         11,474       26,152        29,646
Sales of reserves in place                                      (542)     (26,435)       (5,493)
Net change in income taxes                                   (76,907)      50,994        19,089
Other                                                         22,744      (20,840)      (18,921)
                                                          --------------------------------------
Standardized measure, end of year                         $  261,314   $  101,946     $ 187,347
                                                          ======================================
</TABLE>

                                      F-25
<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, thereunto duly authorized.

                                             ST. MARY LAND & EXPLORATION COMPANY
                                             -----------------------------------
                                                                    (Registrant)

Date: March 10, 2000                                   By: /s/ THOMAS E. CONGDON
                                                       -------------------------
                                        Thomas E. Congdon, Chairman of the Board


                           GENERAL POWER OF ATTORNEY

         KNOW  ALL MEN BY THESE  PRESENTS,  that  each  person  whose  signature
appears  below   constitutes   and  appoints  Thomas  E.  Congdon  and  Mark  A.
Hellerstein,  and each of them, his true and lawful  attorney-in-fact and agents
with full power of  substitution  and  resubstitution,  for him and in his name,
place and  stead,  in any and all  capacities,  to sign any  amendments  to this
report on Form  10-K,  and to file the same,  with  exhibits  thereto  and other
documents in connection therewith,  with the Securities and Exchange Commission,
hereby ratifying and confirming all that each of said attorneys-in-fact,  or his
substitute or substitutes, may do or cause to be done by virtue hereof.

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this  Report has been  signed  below by the  following  persons on behalf of the
registrant and in the capacities and on the dates indicated.

Signature                   Title                                 Date
- ---------                   -----                                 ----

/s/ THOMAS E. CONGDON
- ---------------------
    Thomas E. Congdon       Chairman of the Board of Directors    March 10, 2000


/s/ MARK A. HELLERSTEIN
- -----------------------     President, Chief Executive Officer,   March 10, 2000
    Mark A. Hellerstein     and Director


/s/ RONALD D. BOONE
- -------------------         Executive Vice President, Chief       March 10, 2000
    Ronald D. Boone         Operating Officer and Director


/s/ RICHARD C. NORRIS
- ---------------------       Vice President-Finance,               March 10, 2000
    Richard C. Norris       Secretary and Treasurer


/s/ GARRY A. WILKENING
- ----------------------      Vice President-Administration         March 10, 2000
    Garry A. Wilkening      and Controller


/s/ LARRY W. BICKLE
- -------------------
    Larry W. Bickle         Director                              March 10, 2000


/s/ DAVID C. DUDLEY
- -------------------
    David C. Dudley         Director                              March 10, 2000


/s/ ROBERT L. NANCE
- -------------------
    Robert L. Nance         Director                              March 10, 2000


/s/ R. JAMES NICHOLSON
- ----------------------
    R. James Nicholson      Director                              March 10, 2000
<PAGE>

Signature                   Title                                 Date
- ---------                   -----                                 ----


/s/ AREND J. SANDBULTE
- ----------------------
    Arend J. Sandbulte      Director                              March 10, 2000


/s/ JOHN M. SEIDL
- -----------------
    John M. Seidl           Director                              March 10, 2000


/s/ WILLIAM J. GARDINER
- -----------------------
    William J. Gardiner     Director                              March 10, 2000


/s/ JACK HUNT
- -------------
    Jack Hunt               Director                              March 10, 2000


                                                                    EXHIBIT 21.1

                                  SUBSIDIARIES
                                       OF
                       ST. MARY LAND & EXPLORATION COMPANY

A.       Wholly-owned  subsidiaries  of St. Mary Land & Exploration  Company,  a
         Delaware corporation:

         1. St. Mary Minerals, Inc., a Colorado corporation
         2. Parish Corporation, a Colorado corporation
         3. St. Mary Operating Company, a Colorado corporation
         4. Nance Petroleum Corporation, a Montana corporation
         5. St. Mary Energy Company, a Delaware corporation

B.       Other subsidiaries of St. Mary Land & Exploration Company

         1. Box Church Gas Gathering LLC, a Colorado limited  liability  company
            (58.6754%)
         2. Roswell LLC, a Texas limited liability company (90%)

C.       Wholly-owned subsidiaries of Parish Corporation:

         1. Natasha Corporation, a Colorado corporation
         2. Lucy Corporation, a Colorado corporation

D.       Partnership interests held by Parish Corporation:

         1. Hilltop Investment Partners, a Colorado general partnership (50%)
         2. C-470 Venture, a Colorado general partnership (68.858%)
         3. Parish Ventures, a Colorado general partnership (100%)

E.       Subsidiaries of Lucy Corporation:

         1. St.  Mary East  Texas LP, a Texas  limited  partnership  (99%)  (the
            remaining  1% interest  is  held  by  St. Mary  Land  &  Exploration
            Company)


                                                                    EXHIBIT 23.1

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation of our
report  included  in this Form 10-K into St. Mary Land &  Exploration  Company's
previously  filed  Form  S-8  Registration   Statement  No.  33-6185,  Form  S-8
Registration  Statement No.  333-30055 and Form S-8  Registration  Statement No.
333-58273.

/s/ ARTHUR ANDERSEN LLP

Denver, Colorado,
   March 9, 2000.


                                                                    EXHIBIT 23.2

                   CONSENT OF INDEPENDENT PETROLEUM ENGINEERS

         The  undersigned  hereby  consents to the references to our firm in the
form and context in which they  appear in the Annual  Report on Form 10-K of St.
Mary Land and  Exploration  Company for the year ended  December  31,  1999.  We
hereby further consent to the use of information contained in our reports, as of
January 1, 1998,  1999 and 2000 setting forth the estimates of revenues from St.
Mary Land & Exploration  Company's oil and gas reserves.  We further  consent to
the  incorporation  by  reference  thereof  into  St.  Mary  Land &  Exploration
Company's Form S-8  (Registration  No.  33-61850),  Form S-8  (Registration  No.
333-30055), and Form S-8 (Registration No. 333-58273).

                                        Very truly yours,

                                        /s/ RYDER SCOTT COMPANY, L.P.
                                        -----------------------------
                                        RYDER SCOTT COMPANY, L.P.

Denver, Colorado,
March 10, 2000.

<TABLE> <S> <C>

<ARTICLE>                                     5
<MULTIPLIER>                                             1,000
<CURRENCY>                                    U.S. DOLLARS

<S>                                           <C>
<PERIOD-TYPE>                                 12-MOS
<FISCAL-YEAR-END>                             DEC-31-1999
<PERIOD-START>                                JAN-01-1999
<PERIOD-END>                                  DEC-31-1999
<EXCHANGE-RATE>                                              1
<CASH>                                                  14,195
<SECURITIES>                                                 0
<RECEIVABLES>                                           22,971
<ALLOWANCES>                                                 0
<INVENTORY>                                                  0
<CURRENT-ASSETS>                                        39,455
<PP&E>                                                 297,821
<DEPRECIATION>                                         145,713
<TOTAL-ASSETS>                                         230,438
<CURRENT-LIABILITIES>                                   26,015
<BONDS>                                                 13,000
                                        0
                                                  0
<COMMON>                                                   139
<OTHER-SE>                                             188,633
<TOTAL-LIABILITY-AND-EQUITY>                           230,438
<SALES>                                                 72,494
<TOTAL-REVENUES>                                        74,021
<CGS>                                                   18,681
<TOTAL-COSTS>                                           18,681
<OTHER-EXPENSES>                                         1,744
<LOSS-PROVISION>                                             0
<INTEREST-EXPENSE>                                         933
<INCOME-PRETAX>                                           (324)
<INCOME-TAX>                                              (406)
<INCOME-CONTINUING>                                         82
<DISCONTINUED>                                               0
<EXTRAORDINARY>                                              0
<CHANGES>                                                    0
<NET-INCOME>                                                82
<EPS-BASIC>                                               0.01
<EPS-DILUTED>                                             0.01


</TABLE>


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