HALFF & OPPENHEIMER

Oil · District 01 · Lease #1364

Operator: SPUR OPERATING CO.

Cum Oil

480k BBL

Cum Gas

38k MCF

casinghead

Wells

19

Production

1993-01 — 2025-09

Peak Month

1993-09

Production History

Cum Oil: 479,634 BBL Cum Gas: 38,324 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,383 BBL/mo

Di (annual)

42.2%

b-factor

0.0

EUR

67,709 BBL

R-squared

0.764

type

exponential

Operator History (from monthly production reports)

2017-07 — 2026-07 BIGFOOT OIL LLC 109 mo
2016-09 — 2017-06 JENCO PETROLEUM CORPORATION 10 mo
2012-03 — 2016-08 JENEX PETROLEUM CORPORATION 54 mo
2000-01 — 2012-02 SPUR OPERATING CO. 146 mo
1993-01 — 1999-12 LAWBAR PETROLEUM, INC. 84 mo

Wells (19)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1 RBIGFOOT OIL LLC46,5002020-02-19
1BBIGFOOT OIL LLC37,8002019-04-18
1BIGFOOT OIL LLC24,6001994-06-06
1ABIGFOOT OIL LLC24,6001994-06-06
216BIGFOOT OIL LLC14,6001982-07-14
416BIGFOOT OIL LLC14,6001982-06-02
116LAWBAR PETROLEUM INC.14,4451981-12-03
1242-163-01240BIGFOOT OIL LLC------
1442-163-01231BIGFOOT OIL LLC------
1642-163-01296BIGFOOT OIL LLC------
1842-163-01297BIGFOOT OIL LLC------
242-163-01291BIGFOOT OIL LLC------
2042-163-01299BIGFOOT OIL LLC------
2142-163-01239BIGFOOT OIL LLC------
342-163-01237BIGFOOT OIL LLC------
642-163-01292BIGFOOT OIL LLC------
742-163-01295BIGFOOT OIL LLC------
842-163-01234BIGFOOT OIL LLC------
942-163-01235BIGFOOT OIL LLC------