POST ESTATE

Oil · District 8A · Lease #66309

Operator: SIERRA LIMA OIL & GAS, LLC

Cum Oil

213k BBL

Cum Gas

133k MCF

casinghead

Wells

7

Production

1993-01 — 2026-04

Peak Month

1993-05

Production History

Cum Oil: 213,467 BBL Cum Gas: 133,260 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,101 BBL/mo

Di (annual)

174.3%

b-factor

2.0

EUR

92,808 BBL

R-squared

0.737

type

hyperbolic

Operator History (from monthly production reports)

2025-12 — 2026-07 AVIATOR ENERGY, LLC 8 mo
2024-06 — 2025-11 SIERRA LIMA OIL & GAS, LLC 18 mo
1997-12 — 2024-05 FASKEN OIL AND RANCH, LTD. 318 mo
1993-01 — 1997-11 HUBER, J. M., CORPORATION 59 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
602AVIATOR ENERGY, LLC28,4002012-05-12
606AVIATOR ENERGY, LLC28,4002012-05-12
601AVIATOR ENERGY, LLC28,4002002-03-20
501AVIATOR ENERGY, LLC38,5001999-11-24
505AVIATOR ENERGY, LLC28,5001997-03-14
504AVIATOR ENERGY, LLC28,4001995-05-03
503AVIATOR ENERGY, LLC18,4001989-04-25