TXL "S" 19-4

Oil · District 08 · Lease #35649

Operator: SANDRIDGE EXPL. AND PROD., LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

33k BBL

Cum Gas

99k MCF

casinghead

Wells

1

Production

1997-12 — 2010-07

Peak Month

1998-12

Production History

Cum Oil: 32,664 BBL Cum Gas: 98,903 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

883 BBL/mo

Di (annual)

45.3%

b-factor

0.3

EUR

33,140 BBL

R-squared

0.790

type

hyperbolic

Operator History (from monthly production reports)

2020-02 — 2022-01 OVINTIV USA INC. 24 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

1997-12 — 2001-12 ARCO PERMIAN 49 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4	42-329-33857	OVINTIV USA INC.	1	10,150	1997-08-18