< leases

DERNEHL

Oil · District 03 · Lease #21260

Operator: WCS OIL AND GAS CORPORATION

Fields: STEPHANIE (WILCOX)

Cum Oil

77k BBL

Cum Gas

50k MCF

casinghead

Wells

1

Production

1993-01 — 2010-08

Peak Month

1994-03

Production History

Cum Oil: 76,872 BBL Cum Gas: 49,526 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,526 BBL/mo

Di (annual)

35.6%

b-factor

0.2

EUR

64,016 BBL

R-squared

0.333

type

hyperbolic

Operator History (from monthly production reports)

2010-02 — 2013-05 IMPETRO OPERATING LLC 40 mo
2007-09 — 2010-01 STO OPERATING COMPANY 29 mo
2007-06 — 2007-08 LEEXUS OPERATING COMPANY 3 mo
2005-01 — 2007-05 LEEXUS OIL & GAS L.L.P. 29 mo
1999-06 — 2004-12 STANTON MINERAL DEVELOPMENT INC 67 mo
1993-01 — 1999-05 WCS OIL AND GAS CORPORATION 77 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-149-32517IMPETRO OPERATING LLC15,8001991-09-27