LONG 14A

Oil · District 08 · Lease #42539

Operator: SM ENERGY COMPANY

Fields: SPRABERRY (TREND AREA)

Cum Oil

151k BBL

Cum Gas

746k MCF

casinghead

Wells

3

Production

2012-04 — 2025-10

Peak Month

2012-08

Production History

Cum Oil: 151,349 BBL Cum Gas: 746,256 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,014 BBL/mo

Di (annual)

98.5%

b-factor

0.4

EUR

120,900 BBL

R-squared

0.839

type

hyperbolic

Operator History (from monthly production reports)

2020-02 — 2026-07 OVINTIV USA INC. 78 mo

2018-07 — 2020-01 ENCANA OIL & GAS(USA) INC. 19 mo

2017-01 — 2018-06 SM ENERGY COMPANY 18 mo

2015-08 — 2016-12 QSTAR OPERATING LLC 17 mo

2012-04 — 2015-07 MIDLAND OIL AND GAS, INC. 40 mo

Wells (3)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
3	42-227-37221	OVINTIV USA INC.	1	10,500	2012-11-02
2	42-227-36958	OVINTIV USA INC.	1	11,300	2012-04-13
1	42-227-36816	OVINTIV USA INC.	1	10,500	2011-11-10