ROCKER B

Oil // district 9 // lease#13818

op: HEC PETROLEUM, INC.

cum_oil

531k BBL

cum_gas

0 MCF

wells

16

production

1994-10 — 2015-01

peak_month

1995-12

-- production_history

cum_oil: 531,085 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

8,034 BBL/mo

Di (annual)

25.5%

b-factor

0.3

EUR

526,657 BBL

R-squared

0.937

type

hyperbolic

-- wells (16)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12HALLWOOD PETROLEUM, INC.37,5001996-01-26
11HALLWOOD PETROLEUM, INC.37,5001995-10-26
13HALLWOOD PETROLEUM, INC.37,5001995-10-26
1HALLWOOD PETROLEUM, INC.17,5451995-09-14
16HALLWOOD PETROLEUM, INC.47,5001995-07-26
3RDHALLWOOD PETROLEUM, INC.17,5401995-07-25
6HALLWOOD PETROLEUM, INC.17,5501995-07-20
15HALLWOOD PETROLEUM, INC.47,5001995-07-03
4HALLWOOD PETROLEUM, INC.17,5501995-07-03
2HALLWOOD PETROLEUM, INC.27,5001995-06-27
5HALLWOOD PETROLEUM, INC.17,5841995-06-27
7HALLWOOD PETROLEUM, INC.27,5001995-06-27
9HALLWOOD PETROLEUM, INC.37,5001995-06-22
10HALLWOOD PETROLEUM, INC.37,5001995-06-21
8HALLWOOD PETROLEUM, INC.17,5461995-06-05
14HALLWOOD PETROLEUM, INC.37,5001995-02-06
EOF // multi-state drilling data platform // 2026