MARSHALL

Oil · District 01 · Lease #11231

Operator: SEAGULL OPERATING CO., INC.

Fields: SOMERSET

Cum Oil

1k BBL

Cum Gas

20 MCF

casinghead

Wells

15

Production

1993-01 — 1996-01

Peak Month

1993-12

Production History

Cum Oil: 1,095 BBL Cum Gas: 20 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

67 BBL/mo

Di (annual)

676.2%

b-factor

0.6

EUR

248 BBL

R-squared

0.726

type

hyperbolic

Operator History (from monthly production reports)

1994-09 — 2026-07 OIL PRODUCTION SERVICE 383 mo
1994-04 — 1994-08 J-BAR OIL COMPANY 5 mo
1993-01 — 1994-03 SEAGULL OPERATING CO., INC. 15 mo

Wells (15)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9OIL PRODUCTION SERVICE11,0001984-05-22
12SEAGULL OPERATING CO. INC.11,5001984-03-30
13SEAGULL OPERATING CO. INC.11,5001984-03-30
14SEAGULL OPERATING CO. INC.11,5001984-03-30
15SEAGULL OPERATING CO. INC.11,5001984-03-30
11SEAGULL OPERATING CO. INC.11,5001983-10-19
17SEAGULL OPERATING CO. INC.11,5001982-12-10
142-029-02630SEAGULL OPERATING CO. INC.------
1042-029-30137SEAGULL OPERATING CO. INC.------
342-029-02648SEAGULL OPERATING CO. INC.------
442-029-02704SEAGULL OPERATING CO. INC.------
542-029-02665SEAGULL OPERATING CO. INC.------
642-029-30090SEAGULL OPERATING CO. INC.------
742-029-30134SEAGULL OPERATING CO. INC.------
842-029-30135SEAGULL OPERATING CO. INC.------