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Oil and Gas Service Supervisor

Tractor and Equipment
WILLISTON, ND Full Time
POSTED ON 7/21/2026
AVAILABLE BEFORE 9/21/2026

 The Service Department is seeking an Oil and Gas Service Supervisor for our Williston, ND branch.

If you have the ability to work and get along well with people, to accept change quickly and be able to work under stressful situations with a strong desire to promote growth of the service department business through superior performance and complete customer satisfaction this job may be for you.

Essential Duties:

  • Maintain a safe working environment and observe all safety procedures, laws, policies, and rules; investigate accidents in a timely, accurate and complete manner.
  • Communicate with internal and external customers in a manner that promotes a positive relationship.
  • Initiate and respond to communication with other departments, and customers in a timely manner to optimize customer satisfaction.
  • Coordinate all department labor needs as requested by internal and external customers.
  • Work with customers to determine source of problems.
  • Prepares customer repair estimates and/or quotes as required in a timely and accurate manner and provides follow-up.
  • Communicate with customers concerning service activities including reviewing jobs, explaining invoices, identifying need for future repairs and making maintenance recommendations.
  • Manage WIP in accordance with Company operational goals
  • Handle a large volume of phone calls in a timely manner while making accurate and precise decisions regarding prioritizing all service calls.
  • Manage technicians to ensure safe and efficient repairs/prep processes and coordinate training efforts to ensure the development of technicians. 
  • Maintain knowledge of the skills of the labor force (technicians) to manage job placement of the technicians.
  • Keeps up to date on overall activities of the department, identifying problem areas and taking corrective action.
  • Accurately completes all necessary paperwork.
  • Responsible for ensuring repairs and preps are complete, on time and on budget.
  • Maintains control of all assigned company property and ensures that equipment is maintained in safe operating condition at all times.
  • Works to build trust among direct reports and peers alike with reliability and credibility.
  • Regularly demonstrates the Company Values and establishes accountability for self and others to do the same. Addresses behaviors that are counter to our values. 

Supervisory Responsibilities:

  • Supervisor is responsible for the overall direction, coordination, and evaluation of this unit. 
  • Review and manage technician performance in alignment with established Key Performance Indicators
  • Carries out supervisory responsibilities in accordance with the organization's policies and applicable laws.
  • Must be motivated and work with minimal supervision.
  • Responsibilities include interviewing, hiring, and training employees; planning, assigning, and directing work; appraising annual performance reviews; rewarding and disciplining employees; addressing complaints and resolving problems.

Education, Knowledge, Skills & Abilities:

  • Two-year degree or equivalent experience and training preferred
  • At least 2 years’ maintenance experience in the oil and gas industry.
  • Mechanical experience with large bore diesel and natural gas engines
  • Familiarity with Caterpillar service platforms (SIS and DBS preferred)
  • Prior supervisory experience or Service Management Training preferred
  • Excellent customer service skills 
  • Good oral and written communication skills
  • Strong interpersonal, team building, and communication skills
  • Ability to multitask, make informed decisions, and lead under pressure
  • Passion for delivering technical excellence and service leadership
  • Strong computer skills and experience using Microsoft Office (Outlook, Word, Excel, PowerPoint), internet, and other Windows based programs
  • Must possess a clean driving record and be able to meet company insurability guidelines.
  • Requires the ability to stand up to eight hours per day and includes twisting, bending, squatting, sitting stooping and kneeling.
  • Flexibility to travel and visit our customers will be required. Experience working at a Caterpillar (CAT) dealership or with CAT products is ideal.

Company Benefits:

  • Retirement: 401k w/ Company Match and Profit Sharing
  • Paid Time Off: Paid Vacation, Holiday & Sick Leave
  • Health Insurance: Premera Blue Cross Medical w/Telehealth & Dental
  • Vision Insurance: VSP Vision Insurance
  • Insurance: Company Paid Life, AD&D & Disability Insurance
  • Guidance Resources: Employee Assistance Program
  • Rewards: Quarterly Employee Recognition Cash Program
  • Discounts: CAT Products, Rental/Sales Discounts
  • Financial Access: Credit Union Membership is available
  • Growth/Stability: Career Growth Opportunities within a 4th Generation Family-owned Company for over 96 years
  • Tenure: Seniority Bonus, starting at 5 years
  • Talent Referral Program: Employee Referral Bonus

Harnish Group Inc. is the Caterpillar Dealer in Central and Western Washington, Central and Eastern Montana, Northwestern Wyoming, Northwestern North Dakota and the state of Alaska. Our Member Companies are N C Machinery, N C The Cat Rental Store, N C Power Systems, Tractor & Equipment Co., T & E The Cat Rental Store, T & E Power Systems and SITECH Northwest Inc., representing Caterpillar and other manufacturers. We are a family owned and managed company with 1,200 employees. Our Mission is to help our customers succeed by providing premier business solutions delivered by engaged employees through teamwork and excellence.

Salary.com Estimation for Oil and Gas Service Supervisor in WILLISTON, ND
$102,878 to $136,115
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