BRITAIN

Oil · District 7C · Lease #15481

Operator: ST. MARY LAND & EXPLORATION CO.

Cum Oil

1.1M BBL

Cum Gas

5.2M MCF

casinghead

Wells

10

Production

2003-10 — 2026-04

Peak Month

2014-08

Production History

Cum Oil: 1,053,068 BBL Cum Gas: 5,154,255 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

17,188 BBL/mo

Di (annual)

29.4%

b-factor

0.0

EUR

702,122 BBL

R-squared

0.678

type

exponential

Operator History (from monthly production reports)

2010-07 — 2026-07 SM ENERGY COMPANY 193 mo
2006-12 — 2010-06 ST. MARY LAND & EXPLORATION CO. 43 mo
2003-10 — 2006-11 HENRY PETROLEUM LP 38 mo

Wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3136HSM ENERGY COMPANY19,9002014-07-23
3134HSM ENERGY COMPANY110,0002014-03-28
3131HSM ENERGY COMPANY19,8002013-11-25
3133HSM ENERGY COMPANY29,8002013-07-26
3102SM ENERGY COMPANY512,7802010-03-02
3107SM ENERGY COMPANY111,0002008-09-29
3108SM ENERGY COMPANY111,0002008-09-29
3104SM ENERGY COMPANY110,8002004-05-21
3103SM ENERGY COMPANY110,5002004-01-29
3101SM ENERGY COMPANY110,5002003-05-06