CHANCE, B. E. HEIRS

Oil · District 05 · Lease #1956

Operator: WAGNER, DUER & CO.

Cum Oil

160k BBL

Cum Gas

21 MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

2012-10

Production History

Cum Oil: 159,877 BBL Cum Gas: 21 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,101 BBL/mo

Di (annual)

65.3%

b-factor

1.6

EUR

221,373 BBL

R-squared

0.789

type

hyperbolic

Operator History (from monthly production reports)

1995-12 — 2026-07 VALENCE OPERATING COMPANY 368 mo
1993-01 — 1995-11 WAGNER, DUER & CO. 35 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2VALENCE OPERATING COMPANY24,9002011-08-31
142-223-30066VALENCE OPERATING COMPANY------