< leases

WHITMIRE, W.A.

Oil · District 01 · Lease #12190

Operator: WELHAUSEN OPERATING COMPANY, LP

Fields: A.W.P. (OLMOS)

Cum Oil

82k BBL

Cum Gas

450k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2011-11

Production History

Cum Oil: 82,041 BBL Cum Gas: 450,451 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,519 BBL/mo

Di (annual)

123.9%

b-factor

0.7

EUR

39,405 BBL

R-squared

0.689

type

hyperbolic

Operator History (from monthly production reports)

2026-04 — 2026-07 EL MESTENO ENERGY LLC 4 mo
2021-06 — 2026-03 FIRST ROCK, INC. 58 mo
2020-05 — 2021-05 GTG OPERATING, LLC 13 mo
2015-04 — 2020-04 CLEARLY PETROLEUM, LLC 61 mo
2013-06 — 2015-03 WAPITI OPERATING, LLC 22 mo
2012-01 — 2013-05 LAYLINE PETROLEUM I, LLC 17 mo
2001-11 — 2011-12 WELHAUSEN OPERATING COMPANY, LP 122 mo
1993-01 — 2001-10 WELHAUSEN OPERATING CO., INC. 106 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-311-34494EL MESTENO ENERGY LLC111,0002011-02-03
242-311-32713EL MESTENO ENERGY LLC110,5001988-10-14