CASS-ERNEST E20K

Oil · District 08 · Lease #59926

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

166k BBL

Cum Gas

242k MCF

casinghead

Wells

1

Production

2023-05 — 2026-04

Peak Month

2023-11

Production History

Cum Oil: 166,054 BBL Cum Gas: 242,385 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

24,064 BBL/mo

Di (annual)

767.8%

b-factor

1.0

EUR

225,128 BBL

R-squared

0.890

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11HPIONEER NATURAL RES. USA, INC.210,5032023-02-13