BRITAIN

Oil // district 9 // lease#15481

op: ST. MARY LAND & EXPLORATION CO.

cum_oil

1.0M BBL

cum_gas

0 MCF

wells

10

production

2003-10 — 2026-03

peak_month

2014-07

-- production_history

cum_oil: 1,049,886 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

17,537 BBL/mo

Di (annual)

29.9%

b-factor

0.0

EUR

703,902 BBL

R-squared

0.663

type

exponential

-- 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
3102ST. MARY LAND & EXPLORATION CO.512,7802010-03-02
3107ST. MARY LAND & EXPLORATION CO.111,0002008-09-29
3108ST. MARY LAND & EXPLORATION CO.111,0002008-09-29
3104HENRY PETROLEUM LP110,8002004-05-21
3103HENRY PETROLEUM LP110,5002004-01-29
3101HENRY PETROLEUM LP110,5002003-05-06
EOF // data source: Texas Railroad Commission // 2026