GLASS -O-

Oil · District 08 · Lease #31167

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

43k BBL

Cum Gas

226k MCF

casinghead

Wells

1

Production

1993-01 — 2018-12

Peak Month

1993-05

Production History

Cum Oil: 42,747 BBL Cum Gas: 226,464 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

235 BBL/mo

Di (annual)

5.4%

b-factor

0.3

EUR

55,719 BBL

R-squared

0.741

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2020-09 PIONEER NATURAL RES. USA, INC. 277 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.19,4751986-10-14