SHANNON ESTATE

Oil // district 9 // lease#15812

op: TREK RESOURCES, INC.

cum_oil

1.4M BBL

cum_gas

0 MCF

wells

4

production

2005-09 — 2026-03

peak_month

2006-07

-- production_history

cum_oil: 1,384,076 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

21,097 BBL/mo

Di (annual)

52.9%

b-factor

1.0

EUR

1,584,220 BBL

R-squared

0.923

type

hyperbolic

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5TREK RESOURCES, INC.16,5002008-06-13
6TREK RESOURCES, INC.16,5002008-05-29
3TREK RESOURCES, INC.26,6002005-12-30
2TREK RESOURCES, INC.26,0002005-07-19
EOF // data source: Texas Railroad Commission // 2026