OBRIEN, J. M., -B-

Oil · District 02 · Lease #3980

Operator: PRIMROSE OPERATING COMPANY

Fields: GRETA (4400)

Cum Oil

66k BBL

Cum Gas

173k MCF

casinghead

Wells

5

Production

1993-01 — 2003-03

Peak Month

2002-05

Production History

Cum Oil: 65,903 BBL Cum Gas: 172,661 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,647 BBL/mo

Di (annual)

609.6%

b-factor

0.1

EUR

3,668 BBL

R-squared

0.391

type

hyperbolic

Operator History (from monthly production reports)

2010-11 — 2020-07 ACOCK/ANAQUA OPERATING CO., LP 117 mo
2007-10 — 2010-10 CAMBRIAN MANAGEMENT, LTD. 37 mo
2007-04 — 2007-09 CAMBRIAN MANAGEMENT LTD 6 mo
2001-11 — 2007-03 PRIMROSE OPERATING COMPANY 65 mo
2000-04 — 2001-10 EXXON MOBIL CORPORATION 19 mo
1993-01 — 2000-03 EXXON CORP. 87 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
214CAMBRIAN MANAGEMENT, LTD.47,3752008-07-28
212PRIMROSE OPERATING COMPANY34,9001994-08-02
213PRIMROSE OPERATING COMPANY36,3501994-08-02
211PRIMROSE OPERATING COMPANY14,5001990-04-06
20142-391-01019ACOCK/ANAQUA OPERATING CO. LP------