GREGORY -9-

Oil · District 08 · Lease #40646

Operator: SM ENERGY COMPANY

Fields: SPRABERRY (TREND AREA)

Cum Oil

58k BBL

Cum Gas

23k MCF

casinghead

Wells

1

Production

2010-10 — 2021-08

Peak Month

2011-12

Production History

Cum Oil: 57,661 BBL Cum Gas: 23,286 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,130 BBL/mo

Di (annual)

55.4%

b-factor

0.0

EUR

46,093 BBL

R-squared

0.840

type

exponential

Operator History (from monthly production reports)

2023-07 — 2025-07 SM ENERGY COMPANY 25 mo

2019-09 — 2023-06 RELIANCE ENERGY, INC. 46 mo

2015-12 — 2019-08 CHOLLA PETROLEUM, INC. 45 mo

2010-10 — 2015-11 ENERGEN RESOURCES CORPORATION 62 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
1	42-115-33329	SM ENERGY COMPANY	1	12,500	2010-08-03