< leases

ROCKER B '17'

Oil · District 7C · Lease #14665

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

26k BBL

Cum Gas

83k MCF

casinghead

Wells

2

Production

1997-09 — 2015-09

Peak Month

1997-11

Production History

Cum Oil: 25,791 BBL Cum Gas: 82,843 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

533 BBL/mo

Di (annual)

49.3%

b-factor

0.7

EUR

30,775 BBL

R-squared

0.781

type

hyperbolic

Operator History (from monthly production reports)

2008-01 — 2023-04 PIONEER NATURAL RES. USA, INC. 184 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
1997-09 — 1998-03 HUGOTON ENERGY CORPORATION 7 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-383-34824PIONEER NATURAL RES. USA INC.17,2001997-08-04
242-383-34823PIONEER NATURAL RES. USA INC.17,2001997-08-04