COX-FUNKHOUSER 19A

Oil · District 7C · Lease #21601

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

206k BBL

Cum Gas

584k MCF

casinghead

Wells

1

Production

2022-01 — 2026-04

Peak Month

2022-01

Production History

Cum Oil: 205,683 BBL Cum Gas: 583,742 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

13,203 BBL/mo

Di (annual)

87.8%

b-factor

0.1

EUR

200,475 BBL

R-squared

0.801

type

hyperbolic

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HPIONEER NATURAL RES. USA, INC.210,3502021-07-14