XB COX 20 "A"

Oil · District 7C · Lease #17133

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

118k BBL

Cum Gas

545k MCF

casinghead

Wells

2

Production

2010-04 — 2026-04

Peak Month

2014-03

Production History

Cum Oil: 117,868 BBL Cum Gas: 545,424 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,084 BBL/mo

Di (annual)

19.6%

b-factor

0.0

EUR

66,215 BBL

R-squared

0.458

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo
2010-04 — 2021-01 PARSLEY ENERGY OPERATIONS, LLC 130 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA, INC.213,0002013-03-13
1PIONEER NATURAL RES. USA, INC.111,0002009-12-29