GLASS -I-

Oil · District 08 · Lease #31074

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

29k BBL

Cum Gas

85k MCF

casinghead

Wells

1

Production

1993-01 — 2010-12

Peak Month

1993-08

Production History

Cum Oil: 28,653 BBL Cum Gas: 84,902 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

336 BBL/mo

Di (annual)

12.2%

b-factor

0.0

EUR

33,015 BBL

R-squared

0.870

type

exponential

Operator History (from monthly production reports)

1997-09 — 2012-03 PIONEER NATURAL RES. USA, INC. 175 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.19,4001986-10-07