STALLINGS 10

Oil · District 08 · Lease #44122

Operator: OVINTIV USA INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

57k BBL

Cum Gas

438k MCF

casinghead

Wells

2

Production

2012-04 — 2026-03

Peak Month

2012-08

Production History

Cum Oil: 57,217 BBL Cum Gas: 438,375 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,162 BBL/mo

Di (annual)

35.7%

b-factor

0.3

EUR

55,047 BBL

R-squared

0.457

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

2012-04 — 2013-12 ATHLON FE OPERATING LLC 21 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-227-37840	OVINTIV USA INC.	1	9,800	2014-03-12
1	42-227-36873	OVINTIV USA INC.	1	10,000	2012-01-26