4-B RANCH

Oil · District 09 · Lease #28199

Operator: OAKRIDGE ENERGY, INC.

Cum Oil

616 BBL

Cum Gas

18 MCF

casinghead

Wells

1

Production

1993-01 — 1994-06

Peak Month

1993-09

Production History

Cum Oil: 616 BBL Cum Gas: 18 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

54 BBL/mo

Di (annual)

255.8%

b-factor

0.6

EUR

511 BBL

R-squared

0.644

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 1997-01 OAKRIDGE ENERGY, INC. 49 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2OAKRIDGE ENERGY INC.15,3001991-06-04