LONG

Oil · District 01 · Lease #11972

Operator: OLD CHIEF OIL, LLC

Fields: SOMERSET

Cum Oil

76k BBL

Cum Gas

70 MCF

casinghead

Wells

13

Production

1993-01 — 2026-04

Peak Month

1998-08

Production History

Cum Oil: 76,065 BBL Cum Gas: 70 MCF

RRC production reported through Apr 2026 · recent months incomplete

Operator History (from monthly production reports)

2025-01 — 2026-07 OLD CHIEF OIL, LLC 19 mo
2015-05 — 2024-12 EVERETT OIL, INC. 116 mo
1998-11 — 2015-04 EVERETT OIL 198 mo
1993-01 — 1998-10 DODSON, INC. 70 mo

Wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
19OLD CHIEF OIL, LLC11,5001988-06-07
20OLD CHIEF OIL, LLC11,5001988-06-07
14OLD CHIEF OIL, LLC11,5001988-05-12
15OLD CHIEF OIL, LLC11,5001988-05-12
4OLD CHIEF OIL, LLC11,5001988-05-12
5OLD CHIEF OIL, LLC11,5001988-05-12
12OLD CHIEF OIL, LLC11,5001988-05-05
6OLD CHIEF OIL, LLC11,5001988-05-03
7OLD CHIEF OIL, LLC11,5001988-03-02
11OLD CHIEF OIL, LLC11,5001988-03-01
2OLD CHIEF OIL, LLC11,5001988-01-07
A 13OLD CHIEF OIL, LLC11,5001988-01-07
1OLD CHIEF OIL, LLC11,3001987-12-15