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Location Name: San Antonio, TX 
Job/Requisition ID: 54284
Education Level: High School Diploma/GED Desired 
Relevant Experience Level: Entry Level (1-3 Years) 
Employee Group: Regular - Full Time 
Employee Subgroup: Salaried Exempt

  • Develops and executes basic to moderately complex vessel schedules and cargo plans for Tesoro time and spot chartered vessels in accordance with the plan generated by the Optimization group. Addresses plan changes and provides guidance across the enterprise and filters appropriate information to the vessels for voyage planning.
  • Oversees/coordinates overall interface between the Marine Operations group, optimization, crude and product schedulers, and refinery and terminal schedulers.
  • Manages spot charters ensuring safe and efficient operations. Responsible for timely reporting of incidents and management of communications between stakeholders.
  • Responsible for all aspects of voyage management from cradle to grave and support of post fixture claims. Works with Post Fixture Claims throughout the voyage from start to completion.
  • Communicates with vessels and creates and executes voyage orders, vessel reporting requirements, cargo documentation, and agency appointment/nominations.
  • Responsible for planning and preparation of cargo tanks for time and spot chartered vessels per Tesoro Tank cleaning Matrix or International agreed standards i.e. Shell Tank Cleaning Guide.
  • Maintains close working relationship with International and US flag owners and Ship Brokers for time chartered and spot chartered tankers and barges.
  • Plans and purchases bunker fuel for Tesoro time chartered vessels liaising with the vessels and bunker broker to optimize cost and quantity per the vessel schedule.
  • Approves Freight invoices and Time Charter hire invoices for chartered vessels per the charter party contract.
  • Ensures compliance with the charter party contract by the time chartered vessel and owners speed, fuel consumption, load/discharge operations.
  • Files and inputs voyage data and scheduling into IMOS and other Tesoro voyagemanagement software.
  • Collaborates with Singapore office in scheduling and managing voyages of time and spot chartered tankers while in the Americas.
  • Reviews and executes charter party contracts and vendor service contracts with for legal, contractual and financial obligations and approval.



  • High School diploma or equivalent required
  • 2 or more years of experience as a vessel agent or commercial marine operator required



About Marathon Petroleum Corporation

Marathon Petroleum Corporation (NYSE: MPC) is a large-scale geographically-diversified and highly -integrated refining, marketing and midstream company. MPC is the nation's largest refiner, with a crude oil refining capacity of more than 3 million barrels per calendar day in its 16-refinery system. MPC's high-quality, nationwide retail and marketing business includes approximately 3,900 company-owned and -operated stores and 7,800 branded locations. MPC owns the general partners of MPLX LP and Andeavor Logistics LP, two strong, customer-focused midstream master limited partnerships.

Job Function: Marine
Travel Expected: None 

Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion or creed, sex or gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, age, physical or mental disability, medical condition, national origin or ancestry, genetic information, military or veteran status, marital or parental status, citizen or immigration status or any other status protected by applicable federal, state, or local laws. If you would like more information about your EEO rights as an applicant, click here.

If you need a reasonable accommodation for any part of the application process at Marathon Petroleum Company LP, please contact our Human Resources Department at Please specify the reasonable accommodation you are requesting, along with the job posting number in which you may be interested.  A Human Resources representative will review your request and contact you to discuss a reasonable accommodation.

Employees must be able to perform the essential functions of the job with or without reasonable accommodation.

Equal Opportunity Employer: Veteran / Disability

Nearest Major Market: San Antonio

Job Segment: Entry Level

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