BRANCH, CHAS.

Oil · District 7B · Lease #3877

Operator: ORYX ENERGY COMPANY

Cum Oil

156k BBL

Cum Gas

12k MCF

casinghead

Wells

12

Production

1993-01 — 2026-04

Peak Month

1993-01

Production History

Cum Oil: 155,734 BBL Cum Gas: 11,719 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

764 BBL/mo

Di (annual)

13.4%

b-factor

1.9

EUR

187,189 BBL

R-squared

0.813

type

hyperbolic

Operator History (from monthly production reports)

2003-08 — 2026-07 BASA RESOURCES, INC. 276 mo
1999-10 — 2003-07 KERR-MCGEE OIL & GAS ONSHORE LLC 46 mo
1999-04 — 1999-09 KERR-MCGEE CORPORATION 6 mo
1993-01 — 1999-03 ORYX ENERGY COMPANY 75 mo

Wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
16BASA RESOURCES, INC.13,5001984-05-09
15BASA RESOURCES, INC.13,5001984-04-26
13BASA RESOURCES, INC.13,5001982-12-15
14BASA RESOURCES, INC.13,5001982-12-15
8BASA RESOURCES, INC.13,4001977-06-09
10WBASA RESOURCES, INC.13,4001977-06-07
1142-429-30638BASA RESOURCES, INC.------
1242-429-30630BASA RESOURCES, INC.------
542-429-30449BASA RESOURCES, INC.------
642-429-30460BASA RESOURCES, INC.------
742-429-31059BASA RESOURCES, INC.------
942-429-30847BASA RESOURCES, INC.------