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Annual Report - 2001 - ARC Resources Ltd.

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PAGE 36<br />

RESERVES<br />

Reserves Reconciliation<br />

Crude Oil Natural Gas Natural Gas Liquids Total<br />

(mbbl) (bcf) (mbbl) (mboe)<br />

Risked Risked Risked Risked<br />

Proved Probable Proved Probable Proved Probable Proved Probable<br />

Reserves at December 31, 1996 10,729 3,418 100.5 11.5 7,687 680 35,166 6,015<br />

Acquisitions and divestments 7,961 1,552 38.8 10.3 1,104 232 15,532 3,501<br />

Drilling and development 176 13 4.7 0.3 49 5 1,008 68<br />

Production (1,334) – (14.0) – (704) – (4,371) –<br />

Revisions 1,416 224 (2.3) (1.6) (677) (158) 355 (201)<br />

Reserves at December 31, 1997 18,948 5,207 127.7 20.5 7,459 759 47,690 9,383<br />

Acquisitions and divestments 2,465 648 (15.1) (2.7) (195) (36) (247) 162<br />

Drilling and development 981 844 4.0 1.2 7 (104) 1,655 940<br />

Production (1,620) – (13.8) – (737) – (4,657) –<br />

Revisions 1,993 (1,570) 0.8 (0.6) 8 (23) 2,134 (1,693)<br />

Reserves at December 31, 1998 22,767 5,129 103.6 18.4 6,542 596 46,576 8,792<br />

Acquisitions and divestments 17,769 4,286 118.0 15.4 3,375 476 40,817 7,320<br />

Drilling and development 1,992 631 5.8 1.7 204 1 3,168 912<br />

Production (3,069) – (24.3) – (981) – (8,100) –<br />

Revisions 536 204 0.7 1.7 (977) 232 (320) 713<br />

Reserves at December 31, 1999 39,995 10,250 203.9 37.1 8,163 1,304 82,141 17,737<br />

Acquisitions and divestments 18,650 3,860 47.7 8.0 1,911 328 28,517 5,527<br />

Drilling and development 2,283 (693) 12.9 1.3 119 (25) 4,556 (497)<br />

Production (4,219) – (28.2) – (1,085) – (10,012) –<br />

Revisions 1,805 (268) 7.4 (3.8) 203 (166) 3,235 (1,057)<br />

Reserves at December 31, 2000 58,513 13,149 243.7 42.7 9,311 1,442 108,437 21,710<br />

Acquisitions and divestments 27,932 7,124 101.9 11.1 1,643 241 46,551 9,211<br />

Drilling and development 2,641 275 12.7 3.1 437 81 5,191 865<br />

Production (7,449) – (42.0) – (1,282) – (15,736) –<br />

Revisions 1,057 (610) 14.3 (1.8) (148) (117) 3,295 (1,029)<br />

Reserves at December 31, <strong>2001</strong> 82,695 19,937 330.5 55.0 9,962 1,649 147,739 30,757<br />

Present Value of Reserves<br />

($ thousands before income taxes) <strong>2001</strong> 2000<br />

Discount Factor 10% 12% 15% 10% 12% 15%<br />

Proved producing 955,706 886,964 803,266 732,530 685,315 626,836<br />

Proved non-producing 111,778 96,477 78,222 100,389 86,651 70,391<br />

Total proved 1,067,484 983,441 881,488 832,918 771,966 697,227<br />

Risked probable 148,509 126,642 102,463 111,886 96,105 78,461<br />

Established 1,215,993 1,110,083 983,951 944,804 868,071 775,688<br />

<strong>ARC</strong> ENERGY TRUST AR <strong>2001</strong>

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