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RIG SPECIFICATIONMD COWAN - SUPER SINGLE MD525 (M)MD COWAN SPECIFICATIONSDERRICK AND SUBSTRUCTUREDERRICK/MASTMake/type:With no set back:Height:Dimensions of base:Dimensions of crown:Gross nominal capacity:Static hook load:Minimum number of lines:Ladders with safety cages and rests:Platform for crown sheave access:Light system explosion proof:MAKE-UP/BREAK-OUT TOOLSUBSTRUCTUREMake/type:Slip Bowl height (above Ground level):Length:Width:Slip Bowl beam capacity (total):Clear height below Slip Bowl beams (to Ground level):YES – API 4G MonogrammedINTERNATIONAL DERRICK SERVICE(IDS)72'8'1" WIDE X 6' DEEP8'1" X 6' DEEP825,000 GNC500,000 SHL8YESYESYES1-BLOHM & VOSS Make-up/Break-outwrench WITH UP TO 65,000 FT-LBS.M/U torque; 85,000 FT-LBS B/O torqueYESIDS14' 8"48'12'250 TON10'6"Hydraulic Pipe Arm1- IDS HYDRAULIC PIPE ARM FORHANDLING 3-1/2" TO 5" RANGE II orIII DRILL PIPE, 6-1/4" TO 8-1/4" DRILLCOLLARS & RANGE III CASINGW/HYDRAULIC ARM FOR HANDLINGPIPE FROM PIPE RACK TOGRABBERSDRAWWORKS AND ASSOCIATED EQUIPMENT

SUPERSINGLE MD525MD COWAN SPECIFICATIONSDrawworksMake/type:Engine make/type:Rated input power:Drum size (diameter x length):Drum type (grooved/smooth):For drill line size:Brake type (disk/drum):Brake size:Maximum Hook load - 8 lines:Crown block safety devices:Make/type: Forum deviceAuxiliary brake:Independent fresh water cooling system for draw worksand air brake:Wire line UnitRIG TECH RT-400BCAT C-15 W/ALISON 6-SPD. TRAN.540 HP21" X 25-1/8"GROOVED (Lebus)1 1/4"DRUM42” x 10”435,000 LBSYESRT-400 CROWN PROTECTOREATON WCB 424EATON-AIRFLEX MODEL # RTBWCS-101 400,000# BRAKINGYESMake/model:Wire length (nominal):Wire size:Max working load:Safe working load:Depth counter:Pull IndicatorOIL WORKS OWI-100012,000'.092 IN835 LBS800 LBSYESNODERRICK HOISTING EQUIPMENTCrown BlockMake/type:Rated Capacity:No. of sheaves:Sheave diameter:Sheave grooved for line size:IDS500,000 SHL8--7 vertical/1horizontal6-36” 1-30" 1-24”1 1/4"Traveling BlockCOWAN INTEGRATED 4-SHEAVESPLIT BLOCK250 TON436"1 1/4"Make/type:Rated Capacity:No. of sheaves:sheave diameter:Sheave grooved for line size:EXHIBIT APage 2 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONSDrilling LineYESDiameter:Construction:1-1/4"BETHLEHEM STEEL AMERICANRRL/IWRC/EIPS DOMESTIC orequivalent2,500'YESNOOptionalNOLength (original):Drilling line reel:Drum cover:Drilling line drum power driven:Roller guides:Dead Line AnchorMake/type:Weight sensor:HERCULES HA-119T60,000#SLIP BOWL SYSTEM - NON-ROTATINGMake/type:Gate/Bowl Opening:Hook Load:Operating Air Pressure:Operating Hydraulic Pressure:Tubular Goods Range1- CAVINS TF-100-S8-3/4"/10-1/8" API STANDARD400,000#60-80 PSI275-300 PSI2-3/8"-8-5/8" O.D.Top Drive/Power SwivelMake:Model:Type (electric/hydraulic):VENTURETECHXK-250HYDRAULIC - SUNSTRANDHYDRAULIC PUMP POWERED BYCATERPILLAR C-18 DIESEL ENGINE& HYDRAULIC SYSTEM250T5,000 PSI22,000 FT-LBSRated capacity:Working pressure:Maximum continuous torque @ 120 rpm:(Power curve available upon request)Maximum continuous rotary speed:Cooling system type:Upper inside BOP:Floating Cushion sub (Upper Torque Sub):100 RPM Dynamic load rating:Working pressure:Output power:EXHIBIT A160 RPMN/A2 3/4" INSIDE4 1/2" I.F.140 Tons5,000 PSI24,000 ft-lbsPage 3 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONSPOWER SUPPLY SYSTEMSRIG POWER PLANTGENERATOR HOUSE: 10' WIDEBY 51' LONG W/ NEW SQUARE DMCCDiesel Engine/Generator SetsQuantity:Make/type:Maximum continuous power:At rotation speed of:Equipped with spark arrestors:Mufflers installed:2CATERPILLAR / C-15540 HPCONSTANT 1200RPMYESYESAC - GeneratorQuantity:Make/type:At rotation speed of:Output volts:2CATERPILLAR/455 KWCONSTANT 1200RPM60 Hz 480 VOLTSAir Compressors - Medium Pressure (rig air):Quantity:Make:Model:Rated Capacity:Working pressure:Prime mover (electric/diesel):Continuous power:CURTIS – 2 eachRS30F102 CFM175 PSIELECTRIC30 HPAIR RECEIVERSOILWORKS – 2 eachVolume (total):Maximum PressureLocation:600 ft2175 PSILube SkidFUEL TANKStandard Cylindrical Tank/ Optional RectangularCylindrical 8' diameterMDC FABRICATED265 BBL.WELL CONTROLLOW PRESSURE BLOWOUT PREVENTERSEXHIBIT APage 4 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONSAll appropriate components H2S ratedNoRAM TYPE PREVENTERSYES1Horn Equipment LWSDOUBLE11 IN5,000 PSIYESMANUAL44"5,000 PSI11" x 5M11" x 5MQuantity:Make/model:Type (single / double / triple):Size:Working pressure:Ram locks:Type (manual/hydraulic):Side outlets:Size:WP:Bottom connection:Top connection:AVAILABLE RAMS (INSTALLED & SPARE)Quantity / type / size:Quantity / type / size:1/BLIND1/PIPE/4 1/2"ANNULAR PREVENTERYes1Horn Equipment HA11” x 5MQuantity:Make/type:Size:Working pressure:Bottom connection:5,000 psi5,000 psiTop connection:5,000 psiKILL LINE VALVESYES1Quantity:Make/type:Size:Working pressure:Hydraulic / manual / non-return:2-1/16 IN5,000 PSIMANUALQuantity:Make/type:Size:Working pressure:Hydraulic / manual / non-return:12-1/16 IN5,000 PSINON-RETURNBOP CONTROL SYSTEMEXHIBIT APage 5 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONSAccumulator UnitMake/model:Location:Fluid reservoir capacity:Total accumulator capacity (with out prior recharge):System working pressure:Total useful accumulator volume equals all preventeropening and closing volumes:Plus percent additional volume:Burnsco “Bison”LOWER DOGHOUSE SKID160 US GALLONS160 US GALLONS3,000 PSI160/YESAccumulator Hydraulic PumpsElectric Driven:Quantity:Make/model:Each driven by motor of power:At operating pressure:1TRIPLEX20HP3,000 PSIAir Driven:Quantity:Make/model:Flow rate of each pump:At operating pressure:23,000 PSIPrimary Control PanelControl panel make/model:Location:Panel controls for the following functions:Annular BOP:Ram BOP's:Choke line valve:System pressure regulator:Pressure regulator for annular:Flow meter:Quantity of pressure gauges:Townsend/BurnscoDOG HOUSE SKIDYESYESYESYESYES3CHOKE MANIFOLDNominal size:Minimum ID:Maximum WP:Quantity of fixed chokes:Make/model:EXHIBIT A2" & 4"5,000 PSI2MCFEE MN-60Page 6 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONSSize (ID):Quantity of adjustable chokes:Make/model:Size (ID):Power choke remote control panel:Make/model:Size (ID):3/4" ORIFICE 1 1/2" OD2AOP INDUSTRIES2-1/16 INNON/AN/ACHOKE LINE (BOP to MANIFOLD)YESQuantity:Make/type:ID:Working pressure:H2S Service:1Midwest Hose3"5,000 PSINOFLEXIBLE BOP CONTROL HOSESYES10SYNFLEX TYPE "B"1"5,000 PSIYESQuantity:Make/type:ID:Working pressure:Fire resistant:Traveling Stand for BOP'sYESMUD SYSTEMMUD PUMPSYES2WEATHERFORDMP101,000TRIPLEXCATERPILLAR 3508 Variable Speed - Diesel1200 RPM FOR 3508WEATHERFORD (Interchangeablew/Emsco F-1000)5,000 PSI5,000 PSICUSTOMER TO FURNISHYESPINION SHAFT3 1/2" X IDQuantity:Make:Model:Horsepower:Type (triplex / duplex):Mud pumps drive motors / engines:Motor type:Continuous power rating per engine:Fluid end type:Maximum working pressure:Test pressure:Pump stroke counter type:Supercharging pump type:Driven by motor of power:Discharge/suction line ID:EXHIBIT APage 7 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONSMud pump pulsation dampener type:Reset relief valve:AS SUPPLIED BY WEATHERFORD3"Torque ConvertersQuantity:Make/type:2U.S. Oilworks / C300-80TRANSFER PUMPS / MIXING PUMPSYESMixing PumpsQuantity:25" X 6" W/50 H.P. ELECTRICMOTORS-MISSION MAGNUM11" IMPELLER 80 TO 110 GALLONSPER MINUTEELECTRIC 50HPN/AMake/model:Output capacity:Drive motor type:Power output:CHARGING PUMPSYES25" X 6" W/50 H.P. ELECTRICMOTORS- MISSION MAGNUM11" IMPELLER-80 TO 110 GALLONSPER MINUTEYES1 (MUD)4”/ 3” IDYESYESYESYESQuantity:Make/model:Output capacity:STANDPIPE MANIFOLDQuantity of standpipes:Standpipe/ID:Kill line outlet:fill-up like outlet:Bleed-off line outlet:Outlet for MWD sensorROTARY HOSESYES2Midwest Hose4" ID X 43' L.5,000YES2Midwest Hose4" x LENGTH DEPENDS ON PUMPRIG UP5,000YESQuantityMake/type:ID x Length:Working pressure:Snubbing lines:Quantity:Make/type:ID x Length:Working pressure:Snubbing lines:EXHIBIT APage 8 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONS2-12'W X 5'H X 40' L W/10' PORCH ONEND FOR PUMPS V-CRIMPED;DESIGNED TO ELIMINATE SURFACETRIP HAZARDS ON WALKINGSURFACELOW PRESSURE MUD SYSTEMSMUD TANKS (CURVED BOTTOMS)YESQuantity:Total capacity (usable):Usable capacity No. 1:Type (active / reserve):Height:Mixer:High Pressure Mud guns:Usable capacity No. 2:Type (active / reserve):Height:Mixer:High Pressure Mud guns:2 700 bbls 350ACTIVE5YESYES 350ACTIVE5YESYESSHALE SHAKERQuantity:Make/model:Type:Nominal flow rate (total):1VORTEX FLUID SYSTEMORBITAL 3000 DUAL SHAKER1000MUD AGITATORSYES3Bario Max 2000 or equivalent10 HPYESYESQuantity:Make/model:Driven by motor of power:Located in tanks:Impeller Blades, TypeMUD HOPPERYES1Oilworks mixing hopper5" X 6" MISSION MAGNUM11" IMPELLER45050Quantity:Make/model:Feed pump make/model:Type/size:Capacity:Drive motor hp:EXHIBIT APage 9 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONSIs feed pump dedicated to mud hopper(s):YESYES – US Oilworks2 - 10"10 - 4” coneMDC FABRICATED400 bbl.DESANDERCone No. & sizeDESILTERWATER TANKRectangular V-crimp 8’ WideCentrifugal Pumps2ODESSA PUMP 2" X 3" CENTRIF. Orequivalent20 HP MOTORSType/Size:Drive Motor HP:BRAKE COOLING/LUBESTER SKIDAdditional skid containing a brake cooling unit andlubrication bulk handling equipment.Brake cooling unitBulk Handling LubesterToteMake:Model:MDC Fabricated SkidRig Tech RTBSS-1015 EA BULK LUBE TOTES; 350 GAL.EA; STAINLESS STEEL TANKSINCLUDED FOR ENGINE OIL,HYDRAULIC OIL, GEAR OIL, ENGINECOOLANT, AND WASTE OILCustom Metalcraft, Inc.TranStore 515829Hose ReelMake:Model:(4 total) 50 ft; ½” hoseLincoln94300 series “A”Pump for Oil TotesMake:Model:PneumaticLincoln84934Pump for CoolantMake:Model:PneumaticLincoln85627 series “B”EXHIBIT APage 10 of 11

SUPERSINGLE MD525MD COWAN SPECIFICATIONSOPTIONAL EQUIPMENT – INCLUDEDAUXILIARY TRAILERSRIG MANAGER/TOOLPUSHER OFFICE/LIVINGQUARTERS13’ X 48’ Skid Mounted1-10,000# Forklift10.000ft range 3 drill pipe15-6” Drill Collars8-8” Drill CollarsTELEHANDLER FORKLIFTDRILL PIPEDRILL COLLARSDRILL COLLARSEXHIBIT APage 11 of 11

RIG SPECIFICATION MD COWAN - SUPER SINGLE MD525 (M) MD COWAN SPECIFICATIONS DERRICK AND SUBSTRUCTURE DERRICK/MAST YES - API 4G Monogrammed Make/type: . Drilling line drum power driven: Optional Roller guides: NO Dead Line Anchor Make/type: HERCULES HA-119T Weight sensor: 60,000# .