ED BOOKS 18

Oil · District 08 · Lease #41731

Operator: OVINTIV USA INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

162k BBL

Cum Gas

1.3M MCF

casinghead

Wells

6

Production

2011-01 — 2026-04

Peak Month

2015-02

Production History

Cum Oil: 162,431 BBL Cum Gas: 1,328,580 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,987 BBL/mo

Di (annual)

30.4%

b-factor

0.0

EUR

78,492 BBL

R-squared

0.671

type

exponential

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

2011-01 — 2011-09 ELEMENT PETROLEUM OPERATING, LLC 9 mo

Wells (6)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
6	42-173-36770	OVINTIV USA INC.	1	9,930	2014-10-02
5	42-173-36759	OVINTIV USA INC.	2	9,900	2014-08-07
4	42-173-34654	OVINTIV USA INC.	1	10,300	2011-12-12
3	42-173-34304	OVINTIV USA INC.	1	11,000	2011-06-16
2	42-173-33910	OVINTIV USA INC.	1	11,000	2010-12-28
1	42-173-33810	OVINTIV USA INC.	2	11,000	2010-10-18