Changes / modifications to the above listed equipment could occur.

Maximum Water Depth denotes the designed rating, pending site specific assessment.

Should you have specific questions, please contact the Marketing Department at: marketing@rowancompanies.com or 713-621-7800

LeTourneau Technologies 116-C Class Jack-Up

ROWAN MIDDLETOWNLife Enhancement:Year in Service: 1980 2011

PRIMARY RIG CHARACTERISTICS

CAPACITIES

DRILLING EQUIPMENT

Travelling Block:National 500 ton Model #660H500

Drawworks:National 1625-DE

Auxiliary Brake:Elmago 7838

Drill Line:1-1/2“

Rotary:National C375

Cementing Equipment:Dowell CPS 361 Slurry King w/ 10K psi-WP

Cranes:(4) LeTourneau PCM 120 Pedestal cranes

Torque Wrench/Spinner:Varco TW-61 Iron roughneck / Hawk spin masters spinners

Emergency Generator(1) Caterpillar D-3306 @ 265 hp

Crown Block:National 583 ton

Top Drive/Power Swivel:Varco TDS-3 with 500 ton upgrade

Prime Movers:(6) Caterpillar D-399 @ 1,325 hp

Derrick:160 ft. Lee C. Moore 30 ft. x 30 ft.

Pipe Storage (Main):

Pipe Storage (Cantilever):

Covered Sack Storage:

Potable Water:

Drill Water:

Diesel Fuel:

Base Oil:

2,040 sq. ft. x 7 ft. high

2,400 sq. ft. x 7ft. high

1,500 sq. ft.

1,078 bbls

11,704 bbls (incl. combo tanks)

2,670 bbls

700 bbls

Maximum Drilling Payload:6,422,160 lbs.

Rotary Load:1,200,000 lbs.

Setback Load:600,000 lbs.

Liquid Mud:1,446 bbls

Sand Traps:241 bbls

Bulk Cement:5,400 cu. ft.

Bulk Barite:5,400 cu. ft.

Maximum Water Depth:300 ft.

Leg Length:410 ft.

Hull Length:

Heliport - can accommodate:

Hull Width:

243 ft.

Bell 412 or 212

Hull Depth:

Quarters Accommodations:

201 ft.

Gear Unit Height:

90 persons

Maximum Drilling Depth:

26 ft.

Mud System Max. Pressure:

Longitudinal Leg Centers:

5,000 psi

24 ft.

Transverse Leg Centers:

Substructure Travel:

Hook Load:

25,000 ft.

12 ft. transverse to port or starboard

Cantilever Skid Out:52 ft. aft of transom

129 ft.

1,250,000 lbs.

142 ft.

Changes / modifications to the above listed equipment could occur.

Maximum Water Depth denotes the designed rating, pending site specific assessment.

Should you have specific questions, please contact the Marketing Department at: marketing@rowancompanies.com or 713-621-7800

GENERAL ARRANGEMENTS

MAIN DECK MACHINERY DECK SIDE PROFILE

REVISED

LeTourneau Technologies 116-C Class Jack-Up

ROWAN MIDDLETOWN

WELL CONTROL MUD SYSTEMSDiverter:27.5” x 37”, Regan KFDJ 2K psi

Annular:13-5/8” Hydril 5k

Desilters:Derrick Model 2M4890F-3MADD w/20x4”

Degasser:(1) Swaco Total Mud Degasser

Mud Processing Pumps:(1) TRW Mission magnum (1) 75 hp and (1) 150 hp

Maximum Pressure:5K psi

Desanders:(3) 12” cones f/ desander section, discharge to lower shaker screen

BOP:(1) 13-5/8” 10K Type U Single; (1) 13 -5/8” 10K Type U Double with Blind Shear, w/ 4-1/16” 10K outlets

Mud Pumps:(3) National 12-P-160 Triplex,1,600 hp driven by (2)GE 752

Control Unit:3K psi CAD unit (28) 15 gal. bottles with reservoir tank of 650 gal.

Mud Mixing Pumps:(2) TRW Mission Magnum 3K gpm

Shale Shakers:(4) Derrick FLC - 513

Choke Manifold:(22) 3-1/16’’ 10M manual, H2S trimmed ‘HpT’valves (2) 2-1/16’’ 10M manual ‘HpT’, H2S trimmed valves(1) 3’’ 10M check valve, H2S trimmed

Mud Pits:1,466 bbls total, (3) mud pits + (1) slugging tank

12/31/2012