1. A decision services company dedicated to assist clients with the application of optimization technologies, and help them improve their business. Services Offered: Model development, maintenance, and enhancement Personnel training Process Design Project studies Spreadsheet Solutions Planning Optimization and Scheduling Tool (POST) Step change modeling techniques to plan capital. Process design techniques

2. POST Model The crude schedule input as part of the scheduling process or imported from another source. Each crude delivery is delivered to designated tank(s) where composition is tracked on a daily basis. Crude unit charges (from crude schedule) determine the diet of crude fed to each crude unit. Crude unit products are produced sensitive to cut point and sent to the next processing unit. Intermediates are blended into final products Pipeline and waterborne shipments are scheduled and tankage inventory tracked

3. POST Model, Main Menu Driven:

4. POST Model, Crude Main Menu:

5. POST Model, Crude Schedule: nPipeline and waterborne deliveries nTank transfers nTransfer line composition tracking nAuto link to tank gauging system nAuto link to pipeline schedule nEvery tank inventory and composition tracked daily

6. POST Model, Inventories: nIntermediate Inventory Plots. nVery useful for planning unusual operations nCrude Tankage Plots linked with schedule sheets nEvaluate schedule impacts at a glance

7. POST Model, Cutpoints : n4 Cut point control sets available nControl yields and properties by using customized control set for specific operation

8. POST Model, Benefits: Flexible and easy to use Ideal for Screening options for LP runs Supplements rather than replaces other systems Low initial set-up cost Low maintenance cost

9. Step Change Modeling Successfully applied to Upstream Facilities Capital vs. Capacity “Step Change” plots are generated. Crude diet, capacity, or other variable is manipulated. Capital expenditures predicted to reach new manipulated variable Ideal for Screening options for LP runs

10. Process Design Efficient spreadsheet techniques maximized PFD’s linked to simulation output Existing equipment performance rating Vessel drawings Hydraulic calculations Specification sheets Unit performance monitoring Process only – no project or designer overhead Efficient and cost effective.

11. Personnel Karl Seck - President 22+ years of refinery and oil production process experience Conoco, Sun, Clark, Anvil, StepChange Process design, Tech Services, Optimization and Oil Flow, Project Engineering, Operator Training Louise Seck – Project Manager 20+ years of petroleum and chemical industry process/project engineering experience. Conoco, Dupont, Mallinckrodt, Anvil, Phillips Mystery Man – Optimization Manager Recognized LP and Optimization Expert Over 30 years of industry experience

12. Optimization for the Petroleum Industry Karl Seck President 3190 Bay Road Ferndale, WA 98248 Phone: 360-941-7207 kseck@stepchangeds.net www.stepchangeds.net