UNIVERSITY 7021

Oil · District 08 · Lease #38549

Operator: THREE RIVERS OPERATING CO LLC

Fields: SPRABERRY (TREND AREA)

Cum Oil

89k BBL

Cum Gas

144k MCF

casinghead

Wells

2

Production

2007-11 — 2026-04

Peak Month

2008-07

Production History

Cum Oil: 88,841 BBL Cum Gas: 144,240 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,433 BBL/mo

Di (annual)

330.4%

b-factor

1.8

EUR

75,412 BBL

R-squared

0.479

type

hyperbolic

Operator History (from monthly production reports)

2012-08 — 2026-07 COG OPERATING LLC 168 mo

2011-01 — 2012-07 THREE RIVERS OPERATING CO LLC 19 mo

2007-11 — 2010-12 SAMSON LONE STAR, LLC 38 mo

Wells (2)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-003-40328	COG OPERATING LLC	1	10,400	2007-12-17
1	42-003-40141	COG OPERATING LLC	2	13,000	2007-05-04