CHEATHAM "31"

Oil · District 08 · Lease #38402

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

11k BBL

Cum Gas

17k MCF

casinghead

Wells

1

Production

2007-05 — 2008-05

Peak Month

2007-08

Production History

Cum Oil: 11,482 BBL Cum Gas: 17,315 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,515 BBL/mo

Di (annual)

864.1%

b-factor

1.8

EUR

48,154 BBL

R-squared

0.696

type

hyperbolic

Operator History (from monthly production reports)

2007-05 — 2009-04 PIONEER NATURAL RES. USA, INC. 24 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA, INC.310,0002008-04-22