Newcastle, WY 82701 • (0 miles) • Full Time • 9/27/2026

The Opportunity:Optimization Planning Engineer at a growth-oriented energy companyOpportunity to work in a positive, collaborative, and inclusive work environmentReporting to the Planning & Economics Manager, you will be primarily tasked with creating refinery-wide operating plans that are safe, feasible, and economically optimized.Key activities include::Runs Linear Program to evaluate near term refinery operations and help build an economically optimized plan. Communicates plan to refinery and corporate. Presents 3 month plan for Wyoming refinery company to refinery and corporate leadership, during Monthly Operating Plan meetings.Coordinates all refinery LP model changes and updates with the assistance of Haverly and/or outside consultant help as needed. Runs LP Model weekly to select cr

Newcastle, WY 82701 • (0 miles) • Full Time • 9/27/2026

Process & Projects EngineerThe Opportunity:We are seeking a results-driven Process & Project Engineer to join our refinery team in a high-impact role that combines technical leadership with project execution. Reporting to the Engineering Supervisor, this position offers an exciting opportunity to contribute to a dynamic and growth-focused energy company by supporting the integrity and performance of refinery assets while advancing long-term reliability, safety, and operational excellence.This role offers a dynamic blend of process engineering and project management responsibilities, with a strong focus on fixed equipment systems and unit operations. As an Engineer, you will develop, maintain, and apply subject matter expertise across areas such as pressure vessels, heat exchangers, piping,

Newcastle, WY 82701-2715 • (15.1 miles) • Full Time • 10/5/2026

Environmental EngineerWyoming Refining CompanyWHO WE ARE:Par Pacific is a growth-oriented company that owns and operates market-leading energy and infrastructure businesses in logistically complex markets. Par Pacific combines experience in the oil and gas industry with corporate financing know-how. We bring this unique strength to complex markets where we seek out diamonds in the rough. As a nimble, entrepreneurial organization, we actively pursue new opportunities in response to local market demands and changing external environments.The Opportunity:The Environmental Engineer is responsible for supporting and overseeing day-to-day environmental compliance activities at Wyoming Refining Company, including wastewater treatment operations, groundwater monitoring, waste management, remediati