GAMBLE

Oil · District 09 · Lease #31242

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

1k BBL

Cum Gas

54k MCF

casinghead

Wells

1

Production

2008-09 — 2009-05

Peak Month

2008-11

Production History

Cum Oil: 1,468 BBL Cum Gas: 53,643 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

266 BBL/mo

Di (annual)

128.6%

b-factor

0.0

EUR

2,474 BBL

R-squared

0.358

type

exponential

Operator History (from monthly production reports)

2008-09 — 2011-06 PIONEER NATURAL RES. USA, INC. 34 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPIONEER NATURAL RES. USA INC.19,5002008-03-11