< leases

ROCKER B "11"

Oil · District 7C · Lease #14622

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

34k BBL

Cum Gas

300k MCF

casinghead

Wells

3

Production

1997-07 — 2014-01

Peak Month

1997-11

Production History

Cum Oil: 34,192 BBL Cum Gas: 299,509 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

898 BBL/mo

Di (annual)

82.7%

b-factor

0.9

EUR

43,399 BBL

R-squared

0.772

type

hyperbolic

Operator History (from monthly production reports)

2008-01 — 2014-09 PIONEER NATURAL RES. USA, INC. 81 mo
2006-05 — 2007-12 CIMAREX ENERGY CO. OF COLORADO 20 mo
2004-11 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 18 mo
1999-10 — 2004-10 NADEL AND GUSSMAN PERMIAN,L.L.C. 61 mo
1998-04 — 1999-09 CHESAPEAKE OPERATING, INC. 18 mo
1997-07 — 1998-03 HUGOTON ENERGY CORPORATION 9 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
342-383-34830PIONEER NATURAL RES. USA INC.17,2001997-08-27
242-383-34816PIONEER NATURAL RES. USA INC.17,0001997-07-22
142-383-34793PIONEER NATURAL RES. USA INC.17,0001997-06-20