MIDDLEBROOK

Oil // district 8 // lease#30902

op: WILCOX PETROLEUM OPERATING LLC.

fields: SOJOURNER

cum_oil

248k BBL

cum_gas

0 MCF

wells

10

production

2011-12 — 2026-03

peak_month

2013-03

-- production_history

cum_oil: 247,528 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,112 BBL/mo

Di (annual)

7.5%

b-factor

0.4

EUR

422,492 BBL

R-squared

0.543

type

hyperbolic

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12WILCOX PETROLEUM OPERATING LLC.16,0002022-07-27
11WILCOX PETROLEUM OPERATING LLC.26,0002017-06-15
10WILCOX PETROLEUM OPERATING LLC.16,0002014-10-08
9WILCOX PETROLEUM OPERATING LLC.16,0002013-07-18
8WILCOX PETROLEUM OPERATING LLC.15,9992013-01-17
5WILCOX PETROLEUM OPERATING LLC.15,9992012-08-24
4WILCOX PETROLEUM OPERATING LLC.15,9992012-08-13
3WILCOX PETROLEUM OPERATING LLC.15,9992012-01-25
2WILCOX PETROLEUM OPERATING LLC.15,9992012-01-23
1RWILCOX PETROLEUM OPERATING LLC.15,3002011-11-02
EOF // data source: Texas Railroad Commission // 2026