CURTIS "X"

Oil · District 08 · Lease #35873

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

119k BBL

Cum Gas

173k MCF

casinghead

Wells

4

Production

1997-10 — 2014-10

Peak Month

2013-12

Production History

Cum Oil: 118,546 BBL Cum Gas: 173,075 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,874 BBL/mo

Di (annual)

55.0%

b-factor

0.7

EUR

151,445 BBL

R-squared

0.585

type

hyperbolic

Operator History (from monthly production reports)

1997-10 — 2015-01 PIONEER NATURAL RES. USA, INC. 208 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DPIONEER NATURAL RES. USA, INC.15,7852013-02-16
70PIONEER NATURAL RES. USA, INC.112,5002011-12-10
2PIONEER NATURAL RES. USA, INC.312,0002010-12-09
1PIONEER NATURAL RES. USA, INC.19,7101997-07-10