GLASS -D-

Oil · District 08 · Lease #28308

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

57k BBL

Cum Gas

112k MCF

casinghead

Wells

2

Production

1993-01 — 2017-02

Peak Month

2006-01

Production History

Cum Oil: 56,809 BBL Cum Gas: 111,909 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

475 BBL/mo

Di (annual)

14.0%

b-factor

0.0

EUR

40,595 BBL

R-squared

0.587

type

exponential

Operator History (from monthly production reports)

1997-09 — 2017-05 PIONEER NATURAL RES. USA, INC. 237 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.19,7002005-06-03
1PIONEER NATURAL RES. USA INC.19,7001983-07-05