COX-FUNKHOUSER 19D

Oil · District 7C · Lease #21606

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

287k BBL

Cum Gas

975k MCF

casinghead

Wells

1

Production

2022-01 — 2026-04

Peak Month

2022-05

Production History

Cum Oil: 287,183 BBL Cum Gas: 974,754 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,484 BBL/mo

Di (annual)

43.1%

b-factor

0.0

EUR

263,969 BBL

R-squared

0.479

type

exponential

Operator History (from monthly production reports)

2022-01 — 2026-07 PIONEER NATURAL RES. USA, INC. 55 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HPIONEER NATURAL RES. USA, INC.110,3502021-07-15