Petroleum Engineer Rotation Jobs in Montana (NOW HIRING)

Assistant Operator
Posting Start Date: 6/25/26
Job Location (Short): Billings, MT, USA, 59101
Assistant Operator
The Opportunity

• Assistant Operator at a growth-oriented downstream energy company
• Competitive pay and benefits
• Entry-level job classification
• DuPont schedule includes a built-in week off every fourth week
• Reporting to the Complex Supervisor, you will work on the Company's loading operation.

Key activities include:

• Load/unload refinery grade products at truck loading racks (asphalt) and railcar loading facility
• Coordinate with process operators, laboratory personnel, scale house personnel and truck drivers.
• Operate valves, pumps and other equipment to move crude oil and refined products within the refinery (Valves up to 12-16" size)
• Respond to all emergencies. This will require the ability to run to isolation valves and critical equipment in emergency conditions.
• Become familiar with and capable of using all response and safety equipment used in emergency situations.
• Coordinate with management/supervision to ensure short-term and long-term orders are meticulously carried out.
• Coordinate with maintenance personnel to ensure equipment is kept in operating condition.
• Assist engineering personnel in the design and implementation of modifications to process equipment.
• Maintain unit records - logs, logbooks, transfer sheets, etc.
• Complete and monitor safety permits.
• Understand and comply with all refinery procedures and policies related to your duties
• Maintain a clean work environment
• Work rotating shift
• Communicate with other operators to remain informed of current conditions
• Troubleshoot and solve problems to support safe and reliable loading operations

Note: This description is intended to give you a general overview of the position. Additional responsibilities and opportunities may be identified based on current business needs.
Qualifications
To meet the basic qualifications for this role, you will have legal authorization to work permanently in the United States for any employer without requiring a visa transfer or visa sponsorship.
Additional qualifications include:

• High School Diploma or equivalent required;
• Associate's degree or vocational training preferred

• Work experience in a manufacturing environment, petroleum refinery, chemical plant, military fuels management or other related process industry jobs preferred

• Application of basic mathematics, conversion factors, and tables/charts is required for each classification

• Mechanical aptitude is strongly desirable

• A basic understanding of chemistry and physics principles is desirable

• Qualify for a respirator SCBA clearance

• Ability and willingness to work shift work, including nights, weekends, holidays, and both scheduled and unscheduled overtime
• Strong commitment to safety
• Ability and willingness to work in inclement weather and work at heights

• Ability to satisfactorily complete pre-employment background, medical, and drug screenings

• Excellent team member characteristics

• Capable of comprehending and following complex procedures in a fast-paced environment

• Good communication skills (written, face-to-face, radio, and phone)

• Capable to transverse uneven terrain, scaffolding and earthen area

• Able to climb ladders, elevated walkways and climb onto rail cars

About Us
At Par Pacific, we own and operate market-leading energy and infrastructure businesses in logistically complex markets. We have built a team of downstream industry veterans and subject matter experts to lead our organization with an entrepreneurial spirit and a collaborative, problem solving approach. We bring our diverse strengths and motivation to complex markets where we seek out diamonds in the rough. As a nimble, growing organization, we actively pursue new opportunities with corporate financing know-how, respond to local market demands, and adapt to changing external environments.
More Good Reasons to Work for Par Pacific
Unique Culture and RICH Values
There is nothing ordinary about Par Pacific -- a niche player in the energy space. And there's certainly nothing ordinary about Par Pacific employees. We are driven, hardworking, entrepreneurial-minded professionals who love to win. Our RICH values describe how we approach our work: Respect for Others, Integrity, Collaborative Innovation, and Heart. If that describes you, you'll fit right in.
Location, Location, Location
Because Par Pacific operates in some of the most beautiful places throughout the country, our employees get to make these places their home and enrich their lives. You will work in Billings, Montana, the heart of Yellowstone Country. We have outdoor recreation in all directions and are less than an hour from the mountains. And, as Montana's largest city, Billings offers options to balance life, work and play - with trails for walking and biking, historic sites, plenty of dining options, a myriad of cultural choices, and the largest healthcare sector between Minneapolis and Spokane.
Opportunistic Growth Strategy
At Par Pacific, we look for operations with strong fundamentals and great employees who can move a business forward. Our management team has deep experience in the energy industry, as well as in leading mergers, acquisitions, and integrations of newly acquired companies.
Focused on the Future
We are an energy company that has recognized the imperative and embraced the opportunity to begin the transition from fossil fuels. We are developing products that help reduce greenhouse gas emissions.
Excellent Compensation and Benefits
In addition to a competitive salary, we offer a strong comprehensive benefits package that includes medical, dental and vision insurance, a robust allotment of paid time off, a 401(k) with company match, retirement savings plans, educational reimbursement, and more. Full-time employees (and their families) are offered medical (with prescription coverage), dental, vision, voluntary critical illness, accident, life/AD&D insurance, Flexible Spending Account and Employee Assistance Program. Employees can purchase company stock at discounted prices through the Employee Stock Purchase Program.
Our Headquarters
Par Pacific Holdings, Inc., based in Houston, Texas, owns, manages and maintains interests in energy and infrastructure businesses. We are a growing energy company focused on renewable and conventional fuels in the Western United States. Par Pacific also owns 46% of Laramie Energy, LLC, a natural gas production company with operations and assets concentrated in Western Colorado. Our common stock is publicly traded on the NYSE under the trading symbol "PARR".
Our Refineries and Logistics Operations
We own and operate refineries in Hawaii, Montana, Washington, and Wyoming, with total operating throughput capacity of over 219 Mbpd. Par Pacific owns and operates one of the largest energy networks in Hawaii with 94,000 bpd of operating refining capacity, a logistics system supplying the major islands of the state and 90 retail locations. In the Pacific Northwest and the Rockies, Par Pacific owns and operates 125,000 bpd of combined refining capacity and related multimodal logistics systems.
Our Retail Operations
We own and operate over 90 retail locations in Hawaii under the Hele and 76 brands and over 30 retail locations in Washington and Idaho under the nomnom brand.
Par Pacific Is an Equal Opportunity Employer
Par Pacific prohibits discrimination and harassment of any type and affords equal employment opportunities to employees and applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status,genetic information or any other status protected by applicable law.
Note: Par Pacific will not accept calls or unsolicited resumes from third-party recruiters. All candidates are required to apply through this web posting.