WOLCOTT -C-

Oil · District 10 · Lease #28286

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

157k BBL

Cum Gas

0 MCF

Wells

4

Production

1993-01 — 2026-03

Peak Month

2008-10

Production History

Cum Oil: 157,298 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

1,607 BBL/mo

Di (annual)

58.2%

b-factor

0.8

EUR

91,117 BBL

R-squared

0.730

type

hyperbolic

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7PIONEER NATURAL RES. USA, INC.210,4002008-04-12
3TAMARACK PETROLEUM COMPANY, INC.212,0851983-10-28
2PARKER & PARSLEY, INC.19,8001983-09-19
1R K PETROLEUM CORPORATION212,2001983-07-08
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