< leases

ROCKER B '14'

Oil · District 7C · Lease #14636

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

39k BBL

Cum Gas

239k MCF

casinghead

Wells

2

Production

1997-08 — 2018-04

Peak Month

1998-01

Production History

Cum Oil: 39,188 BBL Cum Gas: 238,597 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

880 BBL/mo

Di (annual)

50.9%

b-factor

0.6

EUR

43,768 BBL

R-squared

0.763

type

hyperbolic

Operator History (from monthly production reports)

2008-01 — 2024-03 PIONEER NATURAL RES. USA, INC. 195 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
1997-08 — 1998-03 HUGOTON ENERGY CORPORATION 8 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-383-34839PIONEER NATURAL RES. USA INC.17,2001997-09-15
142-383-34813PIONEER NATURAL RES. USA INC.17,2001997-07-11