LANGFORD, ET AL

Oil · District 09 · Lease #20871

Operator: KEY ENERGY OF COLORADO, INC.

Cum Oil

25k BBL

Cum Gas

16k MCF

casinghead

Wells

2

Production

1993-01 — 2005-05

Peak Month

1993-03

Production History

Cum Oil: 24,521 BBL Cum Gas: 15,837 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

449 BBL/mo

Di (annual)

31.1%

b-factor

0.8

EUR

41,422 BBL

R-squared

0.660

type

hyperbolic

Operator History (from monthly production reports)

1997-11 — 2012-03 KEY ENERGY OF COLORADO, INC. 173 mo
1995-03 — 1997-10 ENSERCH EXPLORATION, INC 32 mo
1993-01 — 1995-02 EP OPERATING LIMITED PARTNERSHIP 26 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3025RIO PETROLEUM, INC.49,0002006-05-12
1KEY ENERGY OF COLORADO, INC.28,9002005-05-10