YARBROUGH

Oil // district 13 // lease#30307

op: GRAYSON PETROLEUM COMPANY

cum_oil

60k BBL

cum_gas

0 MCF

wells

8

production

2004-04 — 2026-03

peak_month

2008-12

-- production_history

cum_oil: 60,486 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

443 BBL/mo

Di (annual)

9.3%

b-factor

0.0

EUR

56,740 BBL

R-squared

0.563

type

exponential

-- wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7GRAYSON PETROLEUM COMPANY12,0002010-10-08
8GRAYSON PETROLEUM COMPANY12,0002010-10-08
6GRAYSON PETROLEUM COMPANY23,0002009-07-28
5GRAYSON PETROLEUM COMPANY12,0002008-08-15
4GRAYSON PETROLEUM COMPANY14,0002007-08-29
2GRAYSON PETROLEUM COMPANY24,0002004-05-05
1GRAYSON PETROLEUM COMPANY13,2982003-09-25
1WGRAYSON PETROLEUM COMPANY13,2982003-09-25
EOF // data source: Texas Railroad Commission // 2026