ROCKER B -Q-

Oil // district 9 // lease#6524

op: PIONEER NATURAL RES. USA, INC.

cum_oil

150k BBL

cum_gas

0 MCF

wells

21

production

1993-01 — 2014-11

peak_month

1997-07

-- production_history

cum_oil: 150,159 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

792 BBL/mo

Di (annual)

5.5%

b-factor

0.0

EUR

162,524 BBL

R-squared

0.329

type

exponential

-- wells (21)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
19HPIONEER NATURAL RES. USA, INC.37,4502012-07-20
18HPIONEER NATURAL RES. USA, INC.37,5612012-07-19
1DPIONEER NATURAL RES. USA, INC.16,2002012-06-18
17PIONEER NATURAL RES. USA, INC.18,8002008-04-07
22GRUY PETROLEUM MANAGEMENT CO.17,4002006-03-23
21HUGOTON ENERGY CORPORATION17,2001997-10-16
20HUGOTON ENERGY CORPORATION16,7001997-06-20
15HUGOTON ENERGY CORPORATION17,9001997-05-15
16HUGOTON ENERGY CORPORATION17,9001997-05-15
142-235-30474--------
1042-235-30470--------
1142-235-30443--------
1242-235-30438--------
242-235-30425--------
342-235-30473--------
442-235-30440--------
542-235-30472--------
642-235-30444--------
742-235-30471--------
842-235-30439--------
942-235-30456--------
EOF // data source: Texas Railroad Commission // 2026