EXHIBIT 99.1 NEWS RELEASE Investor Relations Contact: Susan Spratlen (972) 444-9001 Pioneer Replaces 167% of Production in 2000 at $4.66 per BOE Dallas, Texas, January 24, 2001 -- Pioneer Natural Resources Company ("Pioneer") (NYSE:PXD) (TSE:PXD) announced that as of December 31, 2000, its total proved oil and gas reserves were 628 million barrels oil equivalent (MMBOE), or 3.8 trillion cubic feet (Tcf) natural gas equivalent, including 312 million barrels (MMBbls) of crude oil and natural gas liquids and 1.9 Tcf of natural gas. Discounted future net cash flow (present value at 10%) was $7.02 billion at year end. In 2000, the Company added 73 MMBOE of proved reserves. Proved developed reserves account for 77% of total proved reserves. "These outstanding results reflect our success at refocusing on the drill bit for growth. Our five-year average drill bit finding and development (F&D) cost (excluding acquisitions) is $5.52 per BOE. During 2001, we plan a capital program of $430 million and plan to drill approximately 465 wells including 25 exploration wells, exposing Pioneer to significant new reserves. We are also moving recent discoveries in the deepwater Gulf of Mexico and South Africa toward first production in 2002 and 2003," stated Scott D. Sheffield, Chairman and CEO. Pioneer replaced 167% of its production during 2000 at a finding cost of $4.66 per BOE. Costs incurred during 2000 totaled $340 million, including $67 million for acquisitions and $273 million for development and exploration activities. Excluding acquisitions, 2000 finding cost was $4.16 per BOE. Year-end proved reserves and costs incurred are detailed in the attached supplemental schedule. Reserves as stated above are based on year-end NYMEX prices for oil and natural gas of $26.69 per barrel and $9.95 per Mcf, respectively. Under a supplemental case using $5.00 per Mcf for natural gas, total proved reserves were 623 MMBOE, F&D costs averaged $5.03 per BOE, reserve replacement was 155% and discounted future net cash flow was $4.3 billion. During 2000, Pioneer drilled 296 wells with 90% success worldwide, including 83 exploration and extension wells with 73% success. The Company drilled 176 wells in the U.S., 35 wells in Canada, 84 wells in Argentina and one well in South Africa. Domestic drilling included 92 Spraberry oil wells, 54 wells in the Hugoton/West Panhandle gas field and 30 wells in other domestic fields. Internationally, 95 of 120 wells were successful. International drilling was primarily focused on core areas in the Neuquen Basin in Argentina and Northeast British Columbia in Canada. Pioneer acquired 7.4 million BOE of proved reserves for $4.89 per BOE primarily through the purchase of its interest in the Camden Hills discovery in the deepwater GOM and through a purchase of additional interests in the Chinchaga field in Canada. Pioneer is a large independent oil and gas exploration and production company with operations in the United States, Canada, Argentina and South Africa. Pioneer's headquarters are in Dallas. For more information, visit Pioneer's website at www.pioneernrc.com. Except for historical information contained herein, the statements in this Press Release are forward-looking statements that are made pursuant to the Safe Harbor Provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements, and the business prospects of Pioneer Natural Resources Company, are subject to a number of risks and uncertainties which may cause the Company's actual results in future periods to differ materially from the forward-looking statements. These risks and uncertainties include, among other things, volatility of oil and gas prices, product supply and demand, competition, government regulation or action, litigation, the costs and results of drilling and operations, the Company's ability to replace reserves or implement its business plans, access to and cost of capital, uncertainties about estimates of reserves, quality of technical data, and environmental risks. These and other risks are described in the Company's 10-K and 10-Q Reports and other filings with the Securities and Exchange Commission. PIONEER NATURAL RESOURCES COMPANY SUPPLEMENTAL INFORMATION Year ended December 31, 2000 South Africa United & Other States Argentina Canada Foreign Total --------- --------- -------- ------- ---------- Proved reserves: Oil (MBbls): Balance, January 1, 2000............ 127,878 25,644 1,266 - 154,788 Revisions of previous estimates: Related to price changes......... 6,513 - (79) - 6,434 Other............................ 7,689 (2,508) 497 - 5,678 Purchases of mineral-in-place....... 841 - - - 841 New discoveries and extensions...... 4,819 7,908 53 5,552 18,332 Production.......................... (8,989) (3,238) (308) - (12,535) Sales of mineral-in-place........... (401) - - - (401) --------- ------- ------- ------- --------- Balance, December 31, 2000.......... 138,350 27,806 1,429 5,552 173,137 Natural Gas Liquids (MBbls): Balance, January 1, 2000............ 131,188 4,153 2,704 - 138,045 Revisions of previous estimates: Related to price changes......... 4,459 - (40) - 4,419 Other............................ 634 3,919 51 - 4,604 Purchases of mineral-in-place....... 396 - 140 - 536 New discoveries and extensions...... - 158 85 - 243 Production.......................... (7,883) (193) (303) - (8,379) Sales of mineral-in-place........... (342) - - - (342) --------- ------- ------- ------- --------- Balance, December 31, 2000.......... 128,452 8,037 2,637 - 139,126 Natural Gas (MMcf): Balance, January 1, 2000............ 1,314,842 415,620 145,251 - 1,875,713 Revisions of previous estimates: Related to price changes......... 29,055 - (10,116) - 18,939 Other............................ 34,857 (15,558) 103 - 19,402 Purchases of mineral-in-place....... 28,071 - 7,768 - 35,839 New discoveries and extensions...... 66,486 43,914 6,132 - 116,532 Production.......................... (83,930) (35,694) (16,219) - (135,843) Sales of mineral-in-place........... (35,054) - - - (35,054) --------- ------- ------- ------- --------- Balance, December 31, 2000.......... 1,354,327 408,282 132,919 - 1,895,528 Equivalent Barrels (MBOE): Balance, January 1, 2000............ 478,206 99,067 28,179 - 605,452 Revisions of previous estimates: Related to price changes......... 15,814 - (1,805) - 14,009 Other............................ 14,133 (1,182) 565 - 13,516 Purchases of mineral-in-place....... 5,916 - 1,435 - 7,351 New discoveries and extensions...... 15,900 15,385 1,160 5,552 37,997 Production.......................... (30,860) (9,380) (3,315) - (43,555) Sales of mineral-in-place........... (6,586) - - - (6,586) --------- ------- ------- ------- --------- Balance, December 31, 2000.......... 492,523 103,890 26,219 5,552 628,184 ========= ======= ======= ======= ========= Costs incurred for oil and gas producing activities ($000): Property acquisition costs: Proved.............................. $ 26,102 $ 1,169 $ 8,709 $ - $ 35,980 Unproved............................ 28,199 520 2,506 - 31,225 --------- ------ ------ ------ ------- 54,301 1,689 11,215 - 67,205 Exploration costs...................... 65,023 35,406 6,744 23,597 130,770 Development costs...................... 84,798 31,335 25,632 - 141,765 --------- ------ ------ ------ ------- $ 204,122 $68,430 $43,591 $23,597 $339,740 ========= ====== ====== ====== ======= Reserve replacement percentage........... 168% 151% 41% n/a 167% ========= ====== ====== ======= Finding costs per BOE of proved reserves added......................... $ 3.94 $ 4.82 $ 32.17 $ 4.25 $ 4.66 ========= ====== ====== ====== =======