GUITAR 11

Oil · District 08 · Lease #38563

Operator: OVINTIV USA INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

85k BBL

Cum Gas

159k MCF

casinghead

Wells

2

Production

2007-08 — 2025-10

Peak Month

2008-03

Production History

Cum Oil: 84,670 BBL Cum Gas: 158,727 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,005 BBL/mo

Di (annual)

67.2%

b-factor

0.3

EUR

76,359 BBL

R-squared

0.807

type

hyperbolic

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

2011-10 — 2013-12 ATHLON FE OPERATING LLC 27 mo

2009-03 — 2011-09 ELEMENT PETROLEUM OPERATING, LLC 31 mo

2007-08 — 2009-02 MANHATTAN PETROLEUM, INC. 19 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-227-36106	OVINTIV USA INC.	1	11,000	2007-12-11
1	42-227-36054	OVINTIV USA INC.	3	11,000	2007-04-12