Rig No. 4

Capable of efficiently drilling depths of 6,500'
Using 4-1/2" drill pipe

· Emsco GB 250-T Air Operated Drawwords with Torque Converter and 15" Double Hydromatic Brake powered by two Tier 3 Caterpiller C-7 Engines rated 225 HP each.

· 98' Lee C. Moore Jackknife Derrick with 8' clearance under Rotary Beams. Capacity 400,000#.

· Ideco MM-550-FD 6" x 15" Duplex Pump Independently Driven by Caterpillar D-379 TA Diesel Engine Rated 500 HP.

· Emsco F-1000 6"x10" Triplex Pump indepedently driven by Caterpillar 3508 Diesel Engine rated at 915 HP.

· 17-1/2" National  Rotary Table

· Shaffer Type B 11"-3,000# Double Gate Blowout Preventer, hydraulically operated, 3,000# working pressure, with 4-1/2" and C.S.O. rams

· 11" - 3,000# GK Hydril  Annular Preventer

· 135 KW Three Phase 110-220V AC Generator with D3306 PCT Caterpillar Engine

· 125 KW Three Phase 110-220V AC Generator with D3306 PCT Caterpillar Engine

· Vapor Proof Lighting System

· Two  Steel Mud Tanks:  350 Bbl. System

· Derrick - Model FC313 - Linear Shaker

· Demco 2 Cone Desander

· Demco 10 Cone Desilter

· Totco 3 Pen Recorder

· 6,500' 4-1/2"OD 16.60# Grade # Drill Pipe with 4-1/2" API Extra Hole Connections

· 2 - 7-1/2" OD x 2-1/2" ID x 30' Long Drill Collars with 6-5/8" regular connections

· 18 6" x 6-1/8" OD x 2-1/2" ID x 30' Long Drill Collars with 4-1/2" Extra Hole Connections

· 300 Bbl. Water Tank

· 100 HP Boiler

· Skid mounted pusher quarters