MADRID

Oil · District 08 · Lease #37880

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

149k BBL

Cum Gas

220k MCF

casinghead

Wells

2

Production

2006-09 — 2026-04

Peak Month

2012-03

Production History

Cum Oil: 149,068 BBL Cum Gas: 219,511 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,187 BBL/mo

Di (annual)

11.5%

b-factor

0.0

EUR

123,939 BBL

R-squared

0.487

type

exponential

Operator History (from monthly production reports)

2006-09 — 2026-07 PIONEER NATURAL RES. USA, INC. 239 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA, INC.110,8502011-03-23
1PIONEER NATURAL RES. USA, INC.19,5252006-04-05