RUFUS 11

Oil · District 10 · Lease #39459

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

340k BBL

Cum Gas

0 MCF

Wells

8

Production

2009-01 — 2026-03

Peak Month

2012-05

Production History

Cum Oil: 340,199 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

3,382 BBL/mo

Di (annual)

14.3%

b-factor

0.1

EUR

312,662 BBL

R-squared

0.825

type

hyperbolic

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
13PIONEER NATURAL RES. USA, INC.110,9002013-12-12
10PIONEER NATURAL RES. USA, INC.110,9002011-10-12
7PIONEER NATURAL RES. USA, INC.110,8002011-06-13
5PIONEER NATURAL RES. USA, INC.110,7002011-01-27
4PIONEER NATURAL RES. USA, INC.111,0002010-06-25
3PIONEER NATURAL RES. USA, INC.210,9002010-01-08
2PIONEER NATURAL RES. USA, INC.110,3502008-12-22
1PIONEER NATURAL RES. USA, INC.210,5002008-09-16
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