ERWIN -C-

Oil · District 10 · Lease #31954

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

249k BBL

Cum Gas

0 MCF

Wells

6

Production

1993-01 — 2026-03

Peak Month

2020-02

Production History

Cum Oil: 249,484 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

2,337 BBL/mo

Di (annual)

509.5%

b-factor

1.6

EUR

78,361 BBL

R-squared

0.656

type

hyperbolic

Wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA, INC.110,0002006-03-15
5PIONEER NATURAL RES. USA, INC.110,0002006-03-15
9PIONEER NATURAL RES. USA, INC.110,0002006-03-15
2PIONEER NATURAL RES. USA, INC.29,0002005-05-12
4PIONEER NATURAL RES. USA, INC.19,0002005-05-12
1PARKER & PARSLEY PETROLEUM CO.18,8001988-05-31
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