SPRINGER, W. A. "B"

Oil · District 8A · Lease #65977

Operator: THREE RIVERS OPERATING CO LLC

Fields: CHRISTOPHER (LOWER TANNEHILL)

Cum Oil

172k BBL

Cum Gas

4k MCF

casinghead

Wells

3

Production

1993-01 — 2026-02

Peak Month

1993-01

Production History

Cum Oil: 172,034 BBL Cum Gas: 3,557 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,196 BBL/mo

Di (annual)

8.0%

b-factor

0.0

EUR

175,875 BBL

R-squared

0.805

type

exponential

Operator History (from monthly production reports)

2017-06 — 2026-07 COOPER OIL & GAS, LLC 110 mo

2013-01 — 2017-05 LEGACY RESERVES OPERATING LP 53 mo

2012-08 — 2012-12 COG OPERATING LLC 5 mo

2011-01 — 2012-07 THREE RIVERS OPERATING CO LLC 19 mo

2007-07 — 2010-12 SAMSON LONE STAR, LLC 42 mo

1996-08 — 2007-06 SAMSON LONE STAR LP 131 mo

1995-04 — 1996-07 SAMSON HYDROCARBONS COMPANY 16 mo

1994-11 — 1995-03 SAMSON RESOURCES COMPANY 5 mo

1993-01 — 1994-10 ORYX ENERGY COMPANY 22 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
3	42-269-31896	COOPER OIL & GAS LLC	1	3,930	1989-03-14
2	42-269-31739	COOPER OIL & GAS LLC	1	4,500	1987-09-23
1	42-269-31685	COOPER OIL & GAS LLC	1	4,500	1987-02-20