WINDHAM "R"

Oil · District 7C · Lease #13082

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

92k BBL

Cum Gas

325k MCF

casinghead

Wells

2

Production

1993-01 — 2024-06

Peak Month

2014-12

Production History

Cum Oil: 91,945 BBL Cum Gas: 325,003 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,401 BBL/mo

Di (annual)

49.7%

b-factor

0.3

EUR

47,938 BBL

R-squared

0.742

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2026-07 PIONEER NATURAL RES. USA, INC. 347 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA INC.112,8002014-07-21
1PIONEER NATURAL RES. USA INC.19,4001991-03-20