McVay Drilling Company 
Rig 4 Inventory 
Mo. Da. Yr. 
Rig Classifications 
Rotary Land RigSize Crews 
4 or 5 men (including driller)| | | | | 
Depth Rating 
12,000 Feet w/ 4 1/2" OD Drill Pipe 
Rating Elevation 
3500 Feet 
Major Components 
Drawworks 
Rotary 
Pump # 1 
Pump # 2 Compound 
Make 
National 
Ideal 
Gardner Denver 
Gardner Denver 
National 
Type 
610 
27.5 
PZ 9 
PZ 9 
610 
Manfucturer's Max. 
Input HP Rating 
850 
1000 
1000 
1100 
Independent Power 
Number 
2 
1 
1 
Make 
Caterpillar 
Caterpillar 
Caterpillar 
Type 
D379 
398 
398 
Total Max. HP 
(hoisting for Dwks.) 
(continuous for other) 
(1125) 1300 rpm 
(1125) 1200 rpm 
850 @1300Derrick: Lee C. Moore Height: 131 feet Gross Nominal Capacity: 550,000 
lbs. 8 Lines: 362,000 
lbs 
10 Lines: 394,000 lbs 
Substructure: Height 
17 
feet 
Casing Capacity 480,000 
lbs Vertical Clearence for BOP's 14'6" KB 18.50' 
Traveling Block Description 
Size wire line 1 1/8 
in 
No. of Sheaves 
5 Make 
National Type 
Ideal 
Capacity 250 
tons 
Minimum Capacity Traveling Component (Hook, Block, Swivel, etc.) 
Make Skytop-Brewster Type HB250 Capacity 250 tons 
Blowout Prevention Description 
Number 
Size, Inches 
Make 
Type 
Wrkg Pressure, psi 
BOP Accumulator 
Make 
Koomey 
Type 6-valve 
Total Usable Vol. 210 gal 
Precharge Press Rating 
1100 lbs 
1 
11" 
Shaeffer 
LWS 
5000 
1 
11" 
Hydril 
GK 
5000 
KILL AND CHOKE MANIFOLD 
4 1/16 HCR with 3 1/16 x 2 1/16 wings 
5000 
Drill Pipe and Collars 
Contractor aggrees to provide 100,000 # of overpull at all times. 
Drill Pipe Length (feet) 
OD, inches 
Wt./ft. 
Grade 
Tool Jt. Type 
Ft. since Insp. 
500-750' 
4 1/2 
20# 
X-95 
6"+ 
0 
6000' 
4 1/2 
16.6# 
X-95 
6"+ 
0 
7000' 
4 1/2 
16.6# 
G-105 or S-135 
6"+ 
0 
Additional Rental Pipe Available 
18000' 
3 1/2 
13.30#-15.50# 
S-135 
5" 
0 
Drill Collar Length (feet) 
OD, inches 
ID, inches 
Wt./Ft. 
Joint 
Description 
FootageSince Inspection 
600' 
8" 
2.25" 
6 5/8" Reg 
0 
1000' 
6"-6 3/4" 
2.25" 
HOLE DICTATES 
4 1/2 X-Hole 
0 
Additional Rental Collars Available 
1200' 
4.75" 
2" 
3 1/2 IF 
0 
Steel Pits and Solids Control 
2-7' X 8' X 49' 
Total volume of Active Mud Tanks 1000 Bbl 
Premix Pit 130 bbls 
1 Swaco - Mongoose Flow Line Cleaner