RATLIFF 46 -B-

Oil · District 08 · Lease #31848

Operator: NORTHSTAR OPERATING COMPANY

Cum Oil

17k BBL

Cum Gas

23k MCF

casinghead

Wells

1

Production

1993-01 — 2006-12

Peak Month

1996-04

Production History

Cum Oil: 16,844 BBL Cum Gas: 22,644 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

154 BBL/mo

Di (annual)

8.4%

b-factor

0.0

EUR

21,588 BBL

R-squared

0.427

type

exponential

Operator History (from monthly production reports)

2004-01 — 2009-01 NORTHSTAR OPERATING COMPANY 61 mo
1996-02 — 2003-12 LIMARK CORPORATION 95 mo
1993-01 — 1996-01 MWJ PRODUCING COMPANY 37 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1NORTHSTAR OPERATING COMPANY210,8001988-06-07