STEPHAN

Oil · District 7B · Lease #26046

Operator: STUBBLEFIELD ENERGY COMPANY

Cum Oil

61k BBL

Cum Gas

51 MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 61,180 BBL Cum Gas: 51 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

251 BBL/mo

Di (annual)

4.3%

b-factor

0.1

EUR

64,859 BBL

R-squared

0.494

type

hyperbolic

Operator History (from monthly production reports)

2017-04 — 2026-07 EARTHBOUND RESOURCES LLC 112 mo
1995-10 — 2017-03 STUBBLEFIELD ENERGY COMPANY 258 mo
1993-04 — 1995-09 ALLEGRO OPERATING, INC. 30 mo
1993-01 — 1993-03 OHLHAUSEN OIL COMPANY 3 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2WIEARTHBOUND RESOURCES LLC33,0002000-07-07
1EARTHBOUND RESOURCES LLC12,5001990-08-03