COOPER, JOE B.

Oil · District 09 · Lease #3971

Operator: LEONARD BROTHERS OPERATING CO.

Fields: WEIR

Cum Oil

59k BBL

Cum Gas

22 MCF

casinghead

Wells

4

Production

1993-01 — 2026-03

Peak Month

1993-04

Production History

Cum Oil: 59,469 BBL Cum Gas: 22 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

262 BBL/mo

Di (annual)

6.1%

b-factor

0.0

EUR

49,202 BBL

R-squared

0.360

type

exponential

Operator History (from monthly production reports)

1993-01 — 2026-07 LEONARD BROTHERS OPERATING CO. 403 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4LEONARD BROTHERS OPERATING CO.12,3032020-12-30
142-237-05836LEONARD BROTHERS OPERATING CO.------
242-237-05837LEONARD BROTHERS OPERATING CO.------
6D42-237-05842LEONARD BROTHERS OPERATING CO.------