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MARYN International Ltd

#5, 4216 54 Avenue SECalgary, AB Canada T2C 2E3

Tel: (403) 252-2239 / (800) 661-7777

www.maryngroup.com

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Energy Drilling Company BioEnergy Drilling Company is a privatelyowned, land drilling contractor based inNatchez, MS. Formed in March of1979,Energy Drilling Company has been inbusiness for over 30 years and currentlyoperates nine drilling rigs in North andSouth Louisiana, East Texas, Mississippi,

Arkansas and Alabama. They offer theircustomers a complete package, fromengineering to operations. They drill wellson turnkey, footage and day work basisand specialize in drilling for independentoperators.

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Energy Drilling Company BioEnergy Drilling Company has a fleet ofnine drilling rigs three 1000 HP box on

box substructure rigs and 6 trailermounted rigs. Their trailer mounted rigshave the same peripheral equipment astheir 1000 HP rigs in the form of mud

pumps, generator sets, solids controlequipment, kelly and pipe spinners,mud tank systems, etc. This makes their

trailer mounted rigs very versatile withregard to drilling 1525 3800 meters(5000 - 12,500 feet) wells.

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Energy Drilling Case Study

CAT C13 Engine

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Warning The Following Pictures May

Cause OEMs and Their Dealers Concern

Heres the Facts

CAT C13 diesel engine used on a drilling rig

Total hours on the components: 23,888

Recommended tear down @ 12,000 hours not done

ROI on reduced oil changes only = ~55%

ROI on total reduced costs = ~602%

Savings on this one engine alone would pay for2.5 engine rebuilds @ $20,000 each.

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Crankshaft After 23,888 Hours

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Components after 23,888 Hours

Main Bearings Specs Lower: +/- 0.004mm

Spec. 1 2 3 4 5 6 7

Upper 3.950 3.940 3.940 3.930 3.930 3.930 3.940 3.940

Lower 3.946 3.930 3.930 3.930 3.920 3.920 3.930 3.930

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Main Bearings after 23,888 Hours

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Piston Sleeves After 23,888 Hours

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Rod Bearings After 23,888 Hours

Rod Bearings Specs Upper & Lower: +/- 0.008mm

Spec. 1 2 3 4 5 6

Upper 2.359 2.350 2.350 2.350 2.350 2.350 2.350

Lower 2.359 2.350 2.350 2.350 2.350 2.350 2.350

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Camshaft Components After 23,888 Hours

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Camshaft Bearings After 23,888 Hours

Camshaft

Bearings Specs : +/- 0.020mm

Spec. 1 2 3 4 5 6 7

3.510 3.510 3.510 3.510 3.510 3.510 3.510 3.510

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Camshaft Bearings

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Thrust Plate After 23,888 Hours

Thrust Plate Specs: 6.350mm +/- 0.040mm

Left 6.210

Right 6.220

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Before and After Costs on C13

Individual PM Breakout Prior to EngineMaxx oil

additive and Kleenoil filtration

CAT C13 Engine recommended service @ 250hours (prior to EngineMaxx and Kleenoil)

Holds 57 litres of oil @ $2.56 / litre = $146.40

CAT spin on filters = 1 @ $28.33 each

Labour = 1 @ $20 / hour Total Cost = $194.73 / PM

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Before Costs on C13Total Typical Maintenance Costs for C13 After

23,888 Hours

Based on recommended 250 hour service intervalsTotal Cost per PM = $194.73

With 23,888 total hours / 250 hours = 96 Total PMs

Total Cost for 96 PMs x $194.73 = $18,694.08

CAT recommended engine rebuild @ 12,000 hours =$20,000 per rebuild x 2 (23,888 hours) = $40,000

Total PM Costs = $58,694.08 for 23,888 hours(does not factor in the downtime costs of the engine

during rebuild)

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After Costs of PM on C13PM Costs After EngineMaxx and Kleenoil Installed

CAT C13 Engine PM service @ 500 hours (2 timesbefore service at 250 hours)Holds 57 litres of oil @ $2.56 / litre = $146.40CAT spin on filter = 1 @ $28.33 eachLabour = 1 @ $20 / hour

Total Cost of PM = $194.731.75 litres EngineMaxx @ $66.00 per litre ( @ 12 per

case price) = $115.50Kleenoil KU65 filter canister & filter = 1 @ $818.00

Total First PM Cost + New Technology Install =$1,128.23

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Total PM Costs For 23,888 Operating Hours After

EngineMaxx / Kleenoil Investment

CAT C13 Engine PM Service (oil changes) @ 2,000 hourintervals over 23,888 hoursCAT C13 Engine EngineMaxx top up and Kleenoil cartridgechanges @ 500 hour intervals over 23,888 hours

Total Cost per PM = $194.73 / PM

With 23,888 total hours / 2000 hours = 12 Total PMs Total Cost for 12 PMs (Oil changes) x $194.73 = $2,336.76 Total Investment for EngineMaxx = $115.50 x 12 = $1,386.00 Initial Kleenoil Filter Unit Investment = $759.00

Total Investment for Kleenoil Cartridges = $59 x 48 = $2,832.00Total PM Costs over 23,888 hours = $7,313.76

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PM Cost Comparison CAT C13 Engine Total Cost Prior to EngineMaxx / Kleenoil Investment =

$58,694.08 after 23,888 hours

Total Cost After EngineMaxx / Kleenoil Investment =$7,313.76 after 23,888 hours

Total Cost After EngineMaxx / Kleenoil Investment

(savings in oil changes alone) = $18,694.08 - $7,313.76 =$11,380.32

Total Savings with EngineMaxx / Kleenoil Investment(including 2 engine rebuilds avoided*) = $58,694.08 $7,313.76 = $51,380.32

This engine would not have been torn down @ 23,888hours if the excellent conditions of the bearings was

known in advance