SCHARBAUER -PQ- UPPER

Oil · District 08 · Lease #19299

Operator: STEPHENS, AUTRY C.

Cum Oil

69k BBL

Cum Gas

36k MCF

casinghead

Wells

8

Production

1993-01 — 2020-09

Peak Month

1993-07

Production History

Cum Oil: 68,732 BBL Cum Gas: 35,908 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

895 BBL/mo

Di (annual)

32.8%

b-factor

0.3

EUR

46,038 BBL

R-squared

0.872

type

hyperbolic

Operator History (from monthly production reports)

2025-11 — 2026-07 OCTANE ENERGY OPERATING, LLC 9 mo
2023-11 — 2025-10 FIVESTONES ENERGY LLC 24 mo
2000-09 — 2023-10 ENDEAVOR ENERGY RESOURCES L.P. 278 mo
1996-02 — 2000-08 STEPHENS, AUTRY C. 55 mo
1993-01 — 1996-01 AMOCO PRODUCTION COMPANY 37 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3ENDEAVOR ENERGY RESOURCES L.P.24,5002008-03-24
4ENDEAVOR ENERGY RESOURCES L.P.24,4001993-11-19
1042-135-31131OCTANE ENERGY OPERATING LLC------
1W42-135-10474OCTANE ENERGY OPERATING LLC------
242-135-10602OCTANE ENERGY OPERATING LLC------
542-135-20287OCTANE ENERGY OPERATING LLC------
742-135-30592OCTANE ENERGY OPERATING LLC------
942-135-30817OCTANE ENERGY OPERATING LLC------