ROBINSON DRILLING - Rig # 7

DRAWWORKS

National 50 CA – 450 HP

Powered by two Cat 3406C’s – 650 HP total

Parkersburg 46 RC 46" hydromatic brake

Crown-O-Matic

1 1/8" drilling line

DERRICK

Al Hicks 131’ x 13’ base

500,000# static hook load capacity

288,000# load capacity w/8 lines

SUBSTRUCTURE

Al Hicks 12’ high

450,000# load capacity

KB 14’ 6"-10’4" rotary clearance

MUD PUMPS

Ideco MM550 (550 HP)

Compounded to drawworks

Oilwell C-250 (250 HP)

W/Cat 3406 (325 HP)

DRILL STRING

9,000’ 4 ½" X-95 grade, NC-46

6" and 8" drill collars

BLOWOUT EQUIPMENT

As required by well

MUD SYSTEM

2 pits – 675 bbl. Circulating capacity

double screen shaker

8-cone desilter

112 bbl. pill pit on end of suction pit

GENERATOR HOUSE

two 100 KW generators powered

by Cat 3304’s

OTHER EQUIPMENT

fresh water tank – 500 bbl.

McKissack 150-ton block

BJ 5150 Dynaplex hook

National DF swivel

Continental-Emsco T250.50" rotary

Satellite automatic driller

Cameron Type C weight indicator

5 ¼" hex kelly