Gasification Technologies Conference

October 11, 2011

Keith Tracy

Chaparral-Coffeyville CO2–EOR Project

Overview – Chaparral Energy

Founded in 1988; Based in Oklahoma City

Core areas: — Mid-Continent (Oklahoma)— Permian Basin (W. Texas)

Oil-weighted producer (63% oil; 37% gas)

Produce ~24,000 BOE/D (2Q 2011 avg.)

149.3MMBOE proved reserves (YE 2010; PV-10 = $1.77B)1

Long-term growth through CO2 EOR

2

Annual Production (MMBoe)

2.63.2

4.25.4

6.8 7.17.6

8.1 8.7

0

2

4

6

8

10

2003 2004 2005 2006 2007 2008 2009 20102011P

¹Based on 12/31/2010 SEC methodology

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Long Term Sustainable Growth Through CO2 EOR

Panhandle

Area

Permian

Basin

Central

Oklahoma

Area

Burbank

Area Long Life EOR Assets in Four Key

Growth Areas (Operations in 3 of 4)

Many CO2 EOR Compatible Fields

200+ MMBOE Potential Reserves

Current CO2 Infrastructure

Capture from 2 fertilizer and 1 ethanol

plant; 1,000s of HP compression

90+ MMCF/D (1.9 MM tons/y) supply

under contract

Own 245 miles of CO2 Pipelines (net)

Low Geologic Risk

CO2 EOR is one of our Long Term Growth Drivers

Existing CELLC CO2 Pipelines

Existing Third Party CO2 Pipelines

Proposed CELLC CO2 Pipelines

Owned Active CO2 fields

Owned Potential CO2 fields

CO2 Source Locations

Enid to Purdy CO2 Pipeline System

Koch Nitrogen Fertilizer

Agrium Nitrogen Fertilizer

Arkalon Ethanol

TexOk CO2

Pipeline

Borger CO2

Pipeline

Estimated 9-20 Billion

Barrels Recoverable

With CO2 EOR in Oklahoma

(DOE 2005 and 2006 reports)

Burbank Area

Osage CO2 Pipeline

CVR Energy

Expanding CO2 Success in Southern OKand Panhandle Area to the Burbank Area

4

Three Primary Components:

1. CO2 Compression Facility

2. CO2 Pipeline

3. Facilities in North Burbank Unit

Injection wells, production wells, tanks,

recycle compressors, water and

CO2 injection lines, etc.

Combined, the project can be considered a

Carbon Capture, Compression, Transportation,

Utilization and Storage (CCTUS) for

Enhanced Oil Recovery (EOR) Project

Coffeyville CO2 Project

5

Typical Analysis:• CO2 = 99.60 mole %

• Methane = 35 ppm vol.

• Non-Methane Hydrocarbons = 41 ppm vol.

• Sulfur = 39 COS ppm vol.2.6 H2S ppm vol.

• N2 = 9.2 ppm vol.

• O2 = 6.0 ppm vol.

• CO = 20 ppm vol.

• H2O = ~150 lbs/MMCF

• Temp = 60°F

• Volume = 40-45 MMCF/D

Coffeyville CO2 Specification

6

• Design Capacity ………………….....………..……. 50 MMCF/D

(~1 MM tons/y)

• Horsepower estimate ………………….....……….. 15,300 hp

• Power Source / Cooling …………………………… Electric / Water

• Inlet Pressure / Temperature (max) …………….. 1 psig @ 120 F

• Tailgate Pressure / Temperature …………………. ~2,000 psig @ ≤ 85 F

• Tailgate Purity Specification ……………….……… ≥ 99.0 mole % CO2

• Tailgate water content specification …………….. <30 lb/MMCF H20

Coffeyville CO2 Compression Facility

7

Coffeyville CO2 Compression Facility

8

• Mainline Length (estimated) .…………….... 70 miles

• Size .…………………………………………….. 10” 900#ANSI

• Design Pressure ……………………………… 2,200 psig @ 100 F

• Line Pipe ………………………………………. X-65 - .279 w.t.

• Design Capacity …………….……………….. 75+ MMCF/D

• CO2 Purity Specification ……………………. ≥ 99.0 mole %

• Delivery Pressure at North Burbank Unit .. ≥ 1,300 psig

Coffeyville CO2 Pipeline

9

Coffeyville CO2 Pipeline

10

11

North Burbank Unit: Initial New Drills and Workovers

2015 Drlg Prod Drlg Inj

2014 Drlg Prod Drlg Inj

2013 Drlg Prod Drlg Inj

2012 Drlg Prod Drlg Inj

Inj WOProd WO2014

Prod WO Inj WO2013

Prod WO Inj WO2012

Inj WO2015 Prod WO

1 Mile

• Project Kick-off April 2011

• Preliminary Engineering/Routing April 2011 – August 2011

• NEPA and Other Permitting May 2011 – March 2012

• Right-of-way Acquisition July 2011 – March 2012

• Detail Engineering/Procurement August 2011 – May 2012

• Construction June 2012 – December 2012

• Start-up/Commissioning January 2013

Total Project Schedule (est.)

12

13

Contact Information

Keith Tracy

CO2 Supply and Transport Manager

Chaparral Energy

701 Cedar Lake Blvd.

Oklahoma City, OK 73114

(405) 426-4521

keith.tracy@chaparralenergy.com