POST ESTATE

Oil · District 8A · Lease #66644

Operator: SIERRA LIMA OIL & GAS, LLC

Fields: MWH (STRAWN)

Cum Oil

53k BBL

Cum Gas

90k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1995-09

Production History

Cum Oil: 53,389 BBL Cum Gas: 89,647 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

817 BBL/mo

Di (annual)

170.5%

b-factor

1.1

EUR

29,481 BBL

R-squared

0.786

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 (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
801AVIATOR ENERGY, LLC28,7001995-06-09
802AVIATOR ENERGY, LLC18,7001990-11-14