Staff


Click on one of the people below to find out more information.

  • Greg Kach
    Dealer Principal
    918.249.9393

    My father was a Chevrolet dealer in Duluth, Minnesota for 23 years. His business afforded me a great start in the industry.In 1968 I began in the Parts Department at age 13, then advanced to car detail and light maintenance on the preowned lot.  My sales career began in 1975 as a favor to a former high school Business Policy teacher.  Uncomfortable with the sales process, he asked if I would help him buy a new Caprice wagon. Most of my teachers and coaches had traded with my family's dealership but I had never personally handled a sales transaction from start to finish. I got the bug; throughout my final two years of college, I sold full-time, working afternoons and evenings.

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  • Steve Lujan
    General Manager
    918.249.9393

    I have 30+ years experience in automotive sales. In 2000, I  joined the Jackie Cooper Family as General Sales Manager.  In late 2012 I assumed the role of General Manager.  However you can find me all over the dealership doing all kinds of work!In my spare time I enjoy golfing and traveling.  I also enjoy dining out and working out in the yard.  I love spending time with my family and my grandson!

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  • Nizar Khaled
    Porsche Brand Ambassador Manager
    918.249.9393

     I have been in the automotive industry for 26 years and part of the Jackie Cooper Family for over 14 years.  I am a Brand  Ambassador and Porsche Certified for sales. I have always been a Porsche enthusiast!  I am an active member of the Cimarron Region Porsche Club of America and a consistent participant in the Porsche Driving School and have logged over 65 hours!  I am a current owner of a Porsche GT2 and a Porsche Cayman S.  I have owned 6 Porsches over the course of the last several years.My hobbies include collection of new and vintage Porsche paraphernalia and an avid racer of 120cc-shift go karts.

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  • Bert Kendrick
    Brand Ambassador
    918.249.9393

    I am happy to apart of the Jackie Cooper family.  I am a Porsche advocate and have owned many Porsche's over the years.  I am a Porsche Certified Sales Consultant and take classes regularly to keep up with this Certification and the new upcoming technologies.

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  • Jonathan Walter
    Brand Ambassador
    918.249.9393

    I am new to the car industry, however I love helping people. I have worked in Technology and software for 4+ years and now I am excited to join the Jackie Cooper family with Porsche.I am a sports and adventure enthusiast. I enjoy soccer and play as often as I can. I am also an avid scuba diver with certifications up to advanced rescue. I grew up on the east coast in Virginia Beach and relocated to Tulsa for college at ORU. I graduated in 2012 and I love the Tulsa area.

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  • Amy Boling
    Finance Manager
    918.249.9393

    I have been with the Jackie Cooper Family since 2013.  I enjoy assisting people all over the world in finding their perfect vehicle!  I started out in the Internet Sales Department and transferred to Finance in 2018.

    Caretaker of two purr..fect kitties, Luna and Kitty.  I like spending time with friends and family and singing Karaoke.  I also enjoy long walks on the beach.

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  • Mark Lorentz
    Service Director
    918.249.9494

     started with Jackie Cooper in 2005 as a Service Advisor for Porsche.  I was then promoted to Nissan Service Manager and a year later promoted to Service Manager for Infiniti, Volvo and smart.  On 2/1/2008 I became the Service and Parts Director for Jackie Cooper Imports overseeing all fixed operations.I was born and raised in Minnesota and married my wife, Robyn there and we have two boys.  We relocated to AZ and lived there for 20 years before moving to Tulsa.  Robyn and I have four grandchildren the youngest is 2 years old.  Our children are the reason I am energized and work the way I do.  I love my family, the job I do and the people I work with.  I enjoy the outdoors and my passion is hunting and fishing.  But anything to do with nature puts a smile on my face.

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  • John Sommers
    Service Director
    918.249.9494

    I joined the Cooper family in 1991 as a technician eventually working my way up to Shop Foreman to Service Director.  I have enjoyed watching our business grow over the years. I am Porsche Gold Certified.  I continue to take off site classes as well as Internet classes to keep these certification up to stay on top of the ever changing technology in automobiles.

    In my spare time I enjoy precision rifle shooting.

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  • Denny Martin
    Porsche Service Manager
    918.249.9494

    I have been in the auto industry for 18 years and with the Jackie Cooper family since 2007.  am Porsche Certified and am currently working on the Brand Ambassador program with Porsche.

    I am married with two beautiful daughters.  In my spare time, I love riding my Harley and spending time with my family.

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  • Sarah Keeton
    Porsche Service Advisor Brand Ambassador
    918.249.9494

    I worked for a pre-school for 10 years before joining Jackie Cooper in 2012.  I started out in customer service and was later promoted to Service Advisor. I am a Certified Porsche Service Brand Ambassador.In my spare time I enjoy hanging out with my three girls singing and dancing.  My older girls and I like to run and recently got into playing disc golf as a family.

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  • Cliff Jones
    Porsche Service Advisor Brand Ambassador
    918.249.9494


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  • Blake Waeger
    Certified Diagnostic Specialist-Gold


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  • Matt Fenwick
    Certified Diagnostic Specialist-Gold


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  • Paul Devore
    Certified Diagnostic Specialist-Gold


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  • Ro Rios
    Certified Diagnostic Specialist-Bronze


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  • Mike McKie
    Parts
    918.249.9494

    I have been in the automotive business for over 15 years and joined the Jackie Cooper family in 2010.  I enjoy camping, cooking out and hanging out with family and friends.  In my spare time you can find me hanging out with my wife and three daughters.

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  • Ed Leisure
    Parts
    918.249.9494


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