CASS-ERNEST E20J

Oil · District 08 · Lease #59903

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

143k BBL

Cum Gas

333k MCF

casinghead

Wells

1

Production

2023-05 — 2026-04

Peak Month

2023-12

Production History

Cum Oil: 143,017 BBL Cum Gas: 333,112 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,314 BBL/mo

Di (annual)

283.7%

b-factor

0.3

EUR

135,151 BBL

R-squared

0.883

type

hyperbolic

Operator History (from monthly production reports)

2023-05 — 2026-07 PIONEER NATURAL RES. USA, INC. 39 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
10HPIONEER NATURAL RES. USA, INC.110,5032023-02-13