TXL "S" 21-4

Oil · District 08 · Lease #35800

Operator: SANDRIDGE EXPL. AND PROD., LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

61k BBL

Cum Gas

144k MCF

casinghead

Wells

2

Production

1998-02 — 2020-02

Peak Month

2014-12

Production History

Cum Oil: 60,602 BBL Cum Gas: 143,507 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

667 BBL/mo

Di (annual)

42.1%

b-factor

0.0

EUR

18,992 BBL

R-squared

0.644

type

exponential

Operator History (from monthly production reports)

2020-02 — 2026-07 OVINTIV USA INC. 78 mo

2015-02 — 2020-01 ENCANA OIL & GAS(USA) INC. 60 mo

2014-01 — 2015-01 ATHLON HOLDINGS LP 13 mo

2010-10 — 2013-12 ATHLON ENERGY OPERATING LLC 39 mo

2010-01 — 2010-09 SANDRIDGE EXPL. AND PROD., LLC 9 mo

2003-08 — 2009-12 FOREST OIL CORPORATION 77 mo

2003-07 — 2003-07 OXY USA WTP LP 1 mo

2002-01 — 2003-06 BP AMERICA PRODUCTION COMPANY 18 mo

1998-02 — 2001-12 ARCO PERMIAN 47 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
5	42-329-36705	OVINTIV USA INC.	1	12,000	2010-07-12
4	42-329-33881	OVINTIV USA INC.	1	10,150	1997-09-03