POWELL "28-B"

Oil · District 7C · Lease #10935

Operator: OVINTIV USA INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

109k BBL

Cum Gas

279k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2010-01

Production History

Cum Oil: 108,858 BBL Cum Gas: 278,543 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,969 BBL/mo

Di (annual)

84.2%

b-factor

0.8

EUR

82,472 BBL

R-squared

0.576

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

2014-05 — 2015-01 ATHLON HOLDINGS LP 9 mo

2003-10 — 2014-04 JM COX RESOURCES, L.P. 127 mo

1993-01 — 2003-09 COX, JOHN L. 129 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-461-36372	OVINTIV USA INC.	1	11,000	2009-09-01
1	42-461-32151	OVINTIV USA INC.	1	9,300	1984-02-16