CATHEY RANCH 66

Oil · District 7C · Lease #15232

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

713 BBL

Cum Gas

2k MCF

casinghead

Wells

1

Production

2001-11 — 2006-03

Peak Month

2001-11

Production History

Cum Oil: 713 BBL Cum Gas: 1,645 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

44 BBL/mo

Di (annual)

568.6%

b-factor

2.0

EUR

2,125 BBL

R-squared

0.795

type

hyperbolic

Operator History (from monthly production reports)

2001-11 — 2011-02 PIONEER NATURAL RES. USA, INC. 112 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.48,4002002-01-11