BRISCOE "J"

Oil · District 04 · Lease #13181

Operator: ST. MARY LAND & EXPLORATION CO.

Fields: GOLD RIVER, NORTH (OLMOS)

Cum Oil

15k BBL

Cum Gas

331k MCF

casinghead

Wells

4

Production

2003-08 — 2010-07

Peak Month

2003-09

Production History

Cum Oil: 14,819 BBL Cum Gas: 331,073 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,071 BBL/mo

Di (annual)

326.7%

b-factor

0.4

EUR

12,596 BBL

R-squared

0.769

type

hyperbolic

Operator History (from monthly production reports)

2010-07 — 2016-10 SM ENERGY COMPANY 76 mo

2007-10 — 2010-06 ST. MARY LAND & EXPLORATION CO. 33 mo

2006-10 — 2007-09 ROCKFORD ENERGY PARTNERS II, LLC 12 mo

2004-10 — 2006-09 HUBER ENERGY L.P. 24 mo

2004-06 — 2004-09 HUBER ENERGY PANHANDLE L.P. 4 mo

2004-04 — 2004-05 HUBER, J. M., CORPORATION 2 mo

2003-08 — 2004-03 CRIMSON ENERGY COMPANY, LC 8 mo

Wells (4)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
32	42-479-38516	SM ENERGY COMPANY	2	6,500	2005-08-09
28	42-479-38529	HUBER ENERGY L.P.	2	6,500	2004-12-20
26	42-479-38464	SM ENERGY COMPANY	2	6,500	2003-06-30
33	42-479-38460	SM ENERGY COMPANY	2	6,500	2003-06-24