GLASS, G. W. B

Oil · District 08 · Lease #40009

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

122k BBL

Cum Gas

487k MCF

casinghead

Wells

2

Production

2010-05 — 2026-04

Peak Month

2011-06

Production History

Cum Oil: 121,881 BBL Cum Gas: 486,695 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,631 BBL/mo

Di (annual)

103.1%

b-factor

1.8

EUR

154,848 BBL

R-squared

0.344

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 CUTBOW OPERATING, LLC 62 mo
2021-02 — 2021-05 PIONEER NATURAL RES. USA, INC. 4 mo
2010-05 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 129 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11COG OPERATING LLC111,0002007-05-22
12CUTBOW OPERATING, LLC111,0002007-05-22