MARSHALL 14

Oil · District 08 · Lease #38627

Operator: OVINTIV USA INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

53k BBL

Cum Gas

300k MCF

casinghead

Wells

2

Production

2007-02 — 2026-04

Peak Month

2015-04

Production History

Cum Oil: 52,753 BBL Cum Gas: 299,583 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,471 BBL/mo

Di (annual)

70.0%

b-factor

0.2

EUR

31,460 BBL

R-squared

0.666

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

2007-02 — 2009-02 MANHATTAN PETROLEUM, INC. 25 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-227-37978	OVINTIV USA INC.	2	9,940	2014-05-28
1	42-227-35886	OVINTIV USA INC.	4	10,500	2008-01-14