GRAGG

Oil // district 13 // lease#18454

op: TEXAS SHALLOW OIL & GAS, LLC

cum_oil

28k BBL

cum_gas

0 MCF

wells

12

production

1993-01 — 2026-03

peak_month

1998-04

-- production_history

cum_oil: 27,668 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

335 BBL/mo

Di (annual)

22.2%

b-factor

0.2

EUR

22,444 BBL

R-squared

0.651

type

hyperbolic

-- wells (12)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
22PETRA PRODUCERS LLC18002018-08-14
34GRAGG OIL CO.11,0001983-09-26
35GRAGG OIL CO.11,0001983-09-26
32GRAGG OIL CO.11,0001983-05-05
33GRAGG OIL CO.11,0001983-05-05
28GRAGG OIL CO.11,0001983-02-15
29GRAGG OIL CO.11,1501983-02-15
30GRAGG OIL CO.11,0001983-02-15
24GRAGG OIL CO.11,0001982-12-09
26GRAGG OIL CO.11,0001982-12-09
27GRAGG OIL CO.11,0001982-12-09
25GRAGG OIL CO.11,0001982-11-22
EOF // multi-state drilling data platform // 2026