MADISON-CALLAWAY 27I

Oil · District 08 · Lease #62218

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

154k BBL

Cum Gas

261k MCF

casinghead

Wells

1

Production

2024-09 — 2026-04

Peak Month

2025-05

Production History

Cum Oil: 153,501 BBL Cum Gas: 260,664 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

25,808 BBL/mo

Di (annual)

566.1%

b-factor

1.1

EUR

376,104 BBL

R-squared

0.790

type

hyperbolic

Operator History (from monthly production reports)

2024-09 — 2026-07 PIONEER NATURAL RES. USA, INC. 23 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9HPIONEER NATURAL RES. USA, INC.110,6302024-05-20