SANDY

Oil · District 7C · Lease #15651

Operator: ST. MARY LAND & EXPLORATION CO.

Cum Oil

859k BBL

Cum Gas

2.2M MCF

casinghead

Wells

14

Production

2005-01 — 2026-04

Peak Month

2007-03

Production History

Cum Oil: 858,698 BBL Cum Gas: 2,227,064 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,280 BBL/mo

Di (annual)

32.0%

b-factor

0.4

EUR

789,198 BBL

R-squared

0.738

type

hyperbolic

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
2005-01 — 2006-11 HENRY PETROLEUM LP 23 mo

Wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3812SM ENERGY COMPANY211,7502009-06-03
3810SM ENERGY COMPANY112,0002008-11-04
3811SM ENERGY COMPANY112,0002008-10-30
3814SM ENERGY COMPANY112,0002008-10-30
3815SM ENERGY COMPANY112,0002008-10-30
3804SM ENERGY COMPANY211,7502008-10-08
3803SM ENERGY COMPANY110,8002006-06-02
3808SM ENERGY COMPANY110,8002006-06-01
3805SM ENERGY COMPANY110,8002006-05-31
3806SM ENERGY COMPANY110,8002006-05-31
3807SM ENERGY COMPANY110,8002006-05-31
3809SM ENERGY COMPANY110,8002006-05-31
3802SM ENERGY COMPANY110,8002005-06-06
3801SM ENERGY COMPANY110,8002004-10-13