CHEATHAM "31"

Oil · District 08 · Lease #38851

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

140k BBL

Cum Gas

351k MCF

casinghead

Wells

5

Production

2008-03 — 2026-04

Peak Month

2012-07

Production History

Cum Oil: 139,798 BBL Cum Gas: 351,395 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,921 BBL/mo

Di (annual)

48.1%

b-factor

0.4

EUR

117,939 BBL

R-squared

0.870

type

hyperbolic

Operator History (from monthly production reports)

2008-03 — 2026-07 PIONEER NATURAL RES. USA, INC. 221 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5PIONEER NATURAL RES. USA, INC.110,6502011-08-12
4PIONEER NATURAL RES. USA, INC.110,6002011-05-26
3PIONEER NATURAL RES. USA, INC.110,5752011-03-01
1PIONEER NATURAL RES. USA, INC.310,0002008-04-22
2PIONEER NATURAL RES. USA, INC.110,5002007-05-21