TEXAS TEN -D-

Oil · District 08 · Lease #31234

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

36k BBL

Cum Gas

121k MCF

casinghead

Wells

1

Production

1993-01 — 2009-02

Peak Month

1994-05

Production History

Cum Oil: 35,625 BBL Cum Gas: 121,350 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

261 BBL/mo

Di (annual)

10.6%

b-factor

0.0

EUR

29,424 BBL

R-squared

0.449

type

exponential

Operator History (from monthly production reports)

1997-09 — 2011-12 PIONEER NATURAL RES. USA, INC. 172 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.311,6001987-05-04