MASON, FULLER

Oil · District 6E · Lease #8691

Operator: STONEWALL PRODUCTION COMPANY INC

Fields: EAST TEXAS

Cum Oil

19k BBL

Cum Gas

18k MCF

casinghead

Wells

3

Production

1993-01 — 2013-10

Peak Month

1996-10

Production History

Cum Oil: 19,235 BBL Cum Gas: 17,940 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

257 BBL/mo

Di (annual)

15.4%

b-factor

0.0

EUR

19,950 BBL

R-squared

0.781

type

exponential

Operator History (from monthly production reports)

2011-11 — 2026-07 SOUTHLAKE OPERATING LLC 177 mo

2010-08 — 2011-10 LAKE SAND OPERATING 15 mo

2007-08 — 2010-07 EMBASSY WELL SERVICE, LLC 36 mo

2005-04 — 2007-07 GAYWOOD OIL & GAS II, LLC 28 mo

2002-10 — 2005-03 GAYWOOD OIL & GAS, LLC 30 mo

2002-04 — 2002-09 ENERGY 2000, INC. 6 mo

2001-03 — 2002-03 ASCEND OIL & GAS, L.L.C. 13 mo

2000-01 — 2001-02 ENERGY 2000, INC. 14 mo

1996-06 — 1999-12 STONEWALL PRODUCTION COMPANY INC 43 mo

1993-01 — 1996-05 NOE, T. C. OIL ACCT. 41 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
3	42-401-31887	SOUTHLAKE OPERATING LLC	1	3,900	1984-05-02
1	42-401-31677	SOUTHLAKE OPERATING LLC	1	3,800	1983-07-11
2	42-401-31678	SOUTHLAKE OPERATING LLC	1	3,800	1983-07-11

MASON, FULLER

Production HistoryBeta Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]

Decline Curve Analysis

Operator History (from monthly production reports)

Wells (3)

Production History