TUBB

Oil · District 08 · Lease #38534

Operator: SM ENERGY COMPANY

Fields: SPRABERRY (TREND AREA)

Cum Oil

94k BBL

Cum Gas

180k MCF

casinghead

Wells

4

Production

2007-10 — 2026-03

Peak Month

2008-12

Production History

Cum Oil: 93,595 BBL Cum Gas: 180,181 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,937 BBL/mo

Di (annual)

62.7%

b-factor

0.6

EUR

80,036 BBL

R-squared

0.883

type

hyperbolic

Operator History (from monthly production reports)

2021-08 — 2026-07 SMC OIL & GAS, INC. 60 mo

2016-10 — 2021-07 SM ENERGY COMPANY 58 mo

2015-10 — 2016-09 JPM EOC OPERATING, INC. 12 mo

2010-12 — 2015-09 LINN OPERATING, INC. 58 mo

2007-10 — 2010-11 CROWNQUEST OPERATING, LLC 38 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
4201	42-227-36150	SMC OIL & GAS, INC.	3	11,000	2008-09-17
3601	42-227-36149	SMC OIL & GAS, INC.	2	11,000	2008-06-03
3704	42-227-36069	SMC OIL & GAS, INC.	2	11,000	2007-06-14
4	42-227-36069	SMC OIL & GAS, INC.	2	11,000	2007-06-14