COCKRELL -B-

Oil · District 10 · Lease #3661

Operator: WO OPERATING COMPANY

Cum Oil

12k BBL

Cum Gas

71 MCF

casinghead

Wells

1

Production

1993-01 — 2013-09

Peak Month

1997-12

Production History

Cum Oil: 12,297 BBL Cum Gas: 71 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

103 BBL/mo

Di (annual)

11.5%

b-factor

0.0

EUR

10,723 BBL

R-squared

0.389

type

exponential

Operator History (from monthly production reports)

2019-01 — 2026-07 LARGE OPERATING LLC 91 mo
1999-09 — 2018-12 WO OPERATING COMPANY 232 mo
1998-04 — 1999-08 CHESAPEAKE OPERATING, INC. 17 mo
1993-02 — 1998-03 HUGOTON ENERGY CORPORATION 62 mo
1993-01 — 1993-01 OXY USA INC. 1 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6WO OPERATING COMPANY13,7101979-10-25