CRAVENS -B-

Oil · District 7C · Lease #6475

Operator: NORTHSTAR OPERATING COMPANY

Cum Oil

95k BBL

Cum Gas

391k MCF

casinghead

Wells

5

Production

1993-01 — 2018-03

Peak Month

1997-07

Production History

Cum Oil: 94,668 BBL Cum Gas: 391,187 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,115 BBL/mo

Di (annual)

22.5%

b-factor

0.3

EUR

82,181 BBL

R-squared

0.768

type

hyperbolic

Operator History (from monthly production reports)

2004-01 — 2019-06 NORTHSTAR OPERATING COMPANY 186 mo
1996-02 — 2003-12 LIMARK CORPORATION 95 mo
1993-01 — 1996-01 MWJ PRODUCING COMPANY 37 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5NORTHSTAR OPERATING COMPANY16,5151997-01-06
142-235-30418NORTHSTAR OPERATING COMPANY------
242-235-30522NORTHSTAR OPERATING COMPANY------
342-235-30528NORTHSTAR OPERATING COMPANY------
442-235-30529NORTHSTAR OPERATING COMPANY------