John Adcock. A proven and inspiring leader of diverse teams known for turning complex processes and business initiatives into executable strategies. Demonstrated ability to lead organizations through extraordinary change, turn-around, and growth. Known for implementing safety, quality and performance management systems that drive efficiency and cost control.

1. JOHN C. ADCOCK
Arcadia, OK 73007
John.adcock70@gmail.com 405.837.9465 www.linkedin.com/in/johncadcock
SENIOR ENGINEERING AND OPERATIONS EXECUTIVE
Operational Strategies | Driving Efficiency | Building Productive Teams
A proven and inspiring leader of diverse teams known for turning complex processes and business initiatives
into executable strategies. Demonstrated ability to lead organizations through extraordinary change, turn-
around, and growth. Known for implementing safety, quality and performance management systems that
drive efficiency and cost control.
PROFESSIONAL EXPERIENCE
CHESAPEAKE ENERGY, Oklahoma City, OK 2008 to 2015
Vice President, Mid-Continent Business Unit, Oklahoma City, OK 2014 to 2015
Led a team of 800 Field, Geology, Production Engineering and Reservoir Engineering personnel in the
corporate office and 9 field locations. Responsible for 16% of Chesapeake’s 2014 D&C Capex program, 22% of
2014 daily production, 40% of producing well count and 65% of Non-Op well count.
 Divested non-core assets eliminating obligation drilling – Cut Capex 52% over 2013 and generated
$710MM in free cashflow while holding year-over-year production rate flat.
 Implemented competitive capital allocation and quarterly review processes for work-over
program - Reduced base production decline by 3.1 percentage points.
 Implemented behavior based safety program - Reduced OSHA Recordable Rate by 73%.
 Implemented preventative maintenance and winterization programs - Reduced winter non-productive
time by 24%, cut agency reportable spills by 11% and total released volumes by 44%.
 Reduced Miss Lime Capex per BOE of reserves by 47% and lease operating expense by 50%
Resource Development Manager, Oklahoma City, OK 2013
Led team of 12 Reservoir Engineers. Responsible for Haynesville and Barnett Districts’ reservoir engineering,
infill development program planning, asset evaluation and Barnett and East Texas divestiture analysis and
data room.
 Developed work-over program quarterly review process.
 Led team in development of type curve data base for competitive capital allocation process.
 Selected for Chesapeake Transformation Leadership Team during 2013 re-organization - Recommended a
new structure which split completion and production engineering roles and focused man-power on
reducing base decline and lease operating expense.
Operations Manager, Shreveport, LA 2011 to 2013
Led a team of 170 employees and consultants in 3 field offices. Responsible for completions for a 34 drilling
rig Haynesville Shale program and production operations for 750+ Haynesville and 1021 legacy wells.
 Developed standard operating procedures; reduced well costs for development program wells 31%
below HBP program wells. Achieved and maintained a 0.0 OSHA Recordable Rate.
 Minimized contract labor and implemented operate-by-exception practices reducing lease operating
expense from $0.32 to $0.17/mcf.
 Increased Haynesville production from 1.5 to 2.0 BCFPD in 7 months.

2. JOHN C. ADCOCK www.linkedin.com/in/johncadcock PAGE 2 OF 3
CHESAPEAKE ENERGY – Continued
Senior Asset Manager, Oklahoma City, OK 2008 to 2010
Led multi-disciplinary team of Land, Geology, Regulatory, Drilling and Completions for 12 rig Marcellus Shale
and Utica drilling programs. Responsible for completion and production engineering for Marcellus Shale and
Utica assets. Co-Authored Marcellus Shale Coalition’s Well Completion, Work-Over and Production
Operations Best Practices. Evaluated potential new plays including Michigan Basin Collingwood, Appalachian
Basin Trenton / Black River and Utica Shale. Completed and brought on production the Ohio Utica horizontal
discovery well.
BJ SERVICES COMPANY, Houston, TX 1993 to 2008
Project Manager, BlueFieldSM Services, Midland, TX 2006 to 2008
Managed start-up of division to apply advanced technology in remedial and work-over programs for mature
fields. Developed cement, acid, fracturing coil tubing and remedial programs for oil and gas producers in East
Texas and Permian Basin waterfloods. Developed accelerated development training program for engineers.
Worked with BJ Services Mechanical Engineering and vendors to design and build purpose-built equipment.
Designed Conformance and Water Shut-off treatment system, computer model and equipment.
District Manager, Hobbs, NM 2002 to 2006
Led a team of professionals to maximize district profit, promote safety, maintain facilities and equipment and
provide quality products and services to customers. Managed team of 100 employees and 86 service units,
budgeting, hiring, employee development, retention and achievement of district goals. Improved OSHA
Recordable Rate from 11.2 to 0.0. Improved “Best District” score from bottom 4 to top 10 of 45 districts.
Increased revenue from $1.2MM per month to $6.5MM per month. Tripled district profit margin.
District Engineer, Odessa, TX 1998 to 2002
Supervised a team of 15 professionals to reduce costs, promote safety, provide quality products and services
to customers and optimize future job designs. Mentored 18 of the company’s 130 Associate Engineering
trainees. Responsible for cement, acid, fracturing and remedial job design and procedures, quality control
and evaluation, employee training and consultation with customers. Performed only known 2-stage foam
cement job. Set quality control standards for Permian Basin which were adopted company wide.
Alliance Engineer, Midland, TX 1994 to 1998
Provided in-house engineering consultation for Conoco, Chevron, Marathon, Pennzoil and Enron Oil & Gas in
the Permian Basin, Mid-Continent and Rocky Mountains. Designed completion, work-over, cement, acid,
fracturing, coil tubing and remedial treatment procedures, evaluated performance and optimized future
designs. Utilized system analysis modeling tools, well test analysis tools, ECD modeling and 3D fracture
modeling to increase production rates, decrease decline rates and reduce operating costs.
Field Engineer, Midland, TX 1994
Provided engineering support for Permian Basin Region. Responsibilities included design of cement, acid,
fracturing and remedial treatment procedures and post treatment modeling, evaluation and optimization.
Associate Engineer, Odessa, TX 1993
Intensive 1 year training program and classes at BJ Services training facility in Tomball, TX. Performed job
monitoring and analysis, quality control and design of cement and stimulation pumping services.

3. JOHN C. ADCOCK www.linkedin.com/in/johncadcock PAGE 3 OF 3
EDUCATION
Bachelor of Science, Mechanical Engineering, Texas Tech University, 1993
PUBLICATIONS & MANUALS
Chairman, RP 90-2 “Annular Pressure Management for On-Shore Wells”, API, On-Going
Team Lead, Haynesville District Best Management Practices, Chesapeake Energy, January 2012
Chairman, Annular Pressure Management, LOGA Haynesville Technical Committee, July 2011
Co-Author, Marcellus South District Best Management Practices, Chesapeake Energy, May 2010
Co-Author, Well Completion and Work-Over Operations Best Practices, Marcellus Shale Coalition, July 2010
Author, “Val Verde Basin Penn Sand – FET vs. Production Evaluation”, November 2001
Co-Author, Conoco / BJ Services Stimulation Standard Practices, Conoco / BJ Services, April 1999
Co-Author, “Standardization of Testing and Reporting Procedures Improves Stimulation Design and
Execution”, Southwest Petroleum Short Course, April 1999
Co-Author, “Enzyme G and Spectra Frac in High-Temperature Dry Gas Wells in Oklahoma and Texas”, BJ
Services Engineering News, May 1999
CONTINUING EDUCATION
OU Price College Energy Executive Management Program, Safety Leadership, Front Line Leadership,
Regulatory Compliance, Advanced Log Analysis, 3-D Fracture Modeling, Nodal Analysis, Well Test Analysis,
Gas Well Deliquification, Gas Lift Optimization, Production Facility Design, Service Tool Engineering,
Underbalanced Drilling, Drilling Practices, Drilling Fluids, Horizontal / Extended Reach Drilling, Water and Gas
Shut-Off
ORGANIZATIONS
Society of Petroleum Engineers, 1993 to Present
Numerous Church Leadership Roles in OK, LA, and NM, 2003 to Present
Chairman, Church Council, 2005