LANGFORD "13"

Oil · District 7C · Lease #7575

Operator: COX, JOHN L.

Cum Oil

6k BBL

Cum Gas

12k MCF

casinghead

Wells

2

Production

1993-01 — 1996-09

Peak Month

1993-01

Production History

Cum Oil: 6,394 BBL Cum Gas: 11,740 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

359 BBL/mo

Di (annual)

89.9%

b-factor

0.5

EUR

9,089 BBL

R-squared

0.873

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 1997-01 COX, JOHN L. 49 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2COX JOHN L.18,7001978-12-21
1COX JOHN L.18,7001978-07-13