GLASS -7-

Oil · District 08 · Lease #22448

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

665k BBL

Cum Gas

1.3M MCF

casinghead

Wells

15

Production

1993-01 — 2025-10

Peak Month

2012-07

Production History

Cum Oil: 664,527 BBL Cum Gas: 1,265,298 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,806 BBL/mo

Di (annual)

24.1%

b-factor

0.0

EUR

488,852 BBL

R-squared

0.889

type

exponential

Operator History (from monthly production reports)

1997-09 — 2026-07 PIONEER NATURAL RES. USA, INC. 347 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (15)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
17PIONEER NATURAL RES. USA INC.112,5002012-03-05
13PIONEER NATURAL RES. USA INC.211,8002012-02-14
15PIONEER NATURAL RES. USA INC.111,4002012-01-31
16PIONEER NATURAL RES. USA INC.111,5002012-01-30
12PIONEER NATURAL RES. USA INC.111,5002011-12-12
11PIONEER NATURAL RES. USA INC.111,1002011-02-18
9PIONEER NATURAL RES. USA INC.111,4002010-10-07
10PIONEER NATURAL RES. USA INC.111,4002010-09-28
14PIONEER NATURAL RES. USA INC.211,1002010-02-19
8PIONEER NATURAL RES. USA INC.211,1002010-02-19
6PIONEER NATURAL RES. USA INC.29,9002004-12-28
7PIONEER NATURAL RES. USA INC.29,9002004-12-28
5PIONEER NATURAL RES. USA INC.110,0002003-07-15
242-317-30660PIONEER NATURAL RES. USA INC.------
342-317-30772PIONEER NATURAL RES. USA INC.------