MAURER

Oil · District 08 · Lease #40141

Operator: SPIRAL ENERGY CORP.

Fields: SPRABERRY (TREND AREA)

Cum Oil

155k BBL

Cum Gas

445k MCF

casinghead

Wells

2

Production

2010-04 — 2026-04

Peak Month

2013-12

Production History

Cum Oil: 154,658 BBL Cum Gas: 445,204 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,989 BBL/mo

Di (annual)

37.2%

b-factor

0.4

EUR

154,161 BBL

R-squared

0.596

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

2011-08 — 2013-12 ATHLON ENERGY OPERATING LLC 29 mo

2010-04 — 2011-07 SPIRAL ENERGY CORP. 16 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-329-38836	OVINTIV USA INC.	1	10,500	2013-08-15
1	42-329-36476	OVINTIV USA INC.	1	10,500	2010-01-19