COX, C. J. "B"

Oil · District 7C · Lease #12898

Operator: HANLEY PETROLEUM INC.

Fields: CALVIN (DEAN)

Cum Oil

25k BBL

Cum Gas

43k MCF

casinghead

Wells

2

Production

1993-01 — 1995-10

Peak Month

1994-06

Production History

Cum Oil: 25,013 BBL Cum Gas: 43,089 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,231 BBL/mo

Di (annual)

50.0%

b-factor

2.0

EUR

181,506 BBL

R-squared

0.816

type

hyperbolic

Operator History (from monthly production reports)

1993-01 — 1996-01 HANLEY PETROLEUM INC. 37 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA, INC.18,6501994-04-18
1PIONEER NATURAL RES. USA INC.18,6501990-07-18