TARZAN "A" CALLAWAY

Oil · District 08 · Lease #35924

Operator: SANDRIDGE EXPL. AND PROD., LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

44k BBL

Cum Gas

126k MCF

casinghead

Wells

1

Production

1998-11 — 2023-10

Peak Month

1998-12

Production History

Cum Oil: 43,632 BBL Cum Gas: 126,496 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

439 BBL/mo

Di (annual)

12.9%

b-factor

0.0

EUR

40,742 BBL

R-squared

0.519

type

exponential

Operator History (from monthly production reports)

2025-01 — 2026-01 DIAMONDBACK E&P LLC 13 mo

2020-05 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 56 mo

2020-02 — 2020-04 OVINTIV USA INC. 3 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

1998-11 — 2001-12 ARCO PERMIAN 38 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
3407	42-317-34187	DIAMONDBACK E&P LLC	1	10,150	1998-06-16

TARZAN "A" CALLAWAY

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 (1)

Production History