COOPER

Oil · District 08 · Lease #42202

Operator: PIEDRA OPERATING, LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

81k BBL

Cum Gas

327k MCF

casinghead

Wells

3

Production

2011-12 — 2026-02

Peak Month

2015-02

Production History

Cum Oil: 81,140 BBL Cum Gas: 327,083 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,064 BBL/mo

Di (annual)

43.9%

b-factor

0.4

EUR

90,963 BBL

R-squared

0.715

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

2014-04 — 2015-01 ATHLON HOLDINGS LP 10 mo

2011-12 — 2014-03 PIEDRA OPERATING, LLC 28 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-173-34405	OVINTIV USA INC.	1	11,000	2011-08-09
3	42-173-34406	OVINTIV USA INC.	2	11,000	2011-08-09
1	42-173-34403	OVINTIV USA INC.	1	11,000	2011-08-08