POST ESTATE

Oil · District 8A · Lease #66264

Operator: SIERRA LIMA OIL & GAS, LLC

Cum Oil

414k BBL

Cum Gas

200k MCF

casinghead

Wells

9

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 413,798 BBL Cum Gas: 199,974 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,826 BBL/mo

Di (annual)

17.0%

b-factor

0.2

EUR

416,946 BBL

R-squared

0.951

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 (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
602AVIATOR ENERGY, LLC28,4002012-05-12
606AVIATOR ENERGY, LLC28,4002012-05-12
603AVIATOR ENERGY, LLC38,4002004-08-25
601AVIATOR ENERGY, LLC28,4002002-03-20
501AVIATOR ENERGY, LLC38,5001999-11-24
502AVIATOR ENERGY, LLC28,6001998-03-20
505AVIATOR ENERGY, LLC28,5001997-03-14
504AVIATOR ENERGY, LLC28,4001995-05-03
605AVIATOR ENERGY, LLC18,6001990-12-07