Field Operator
Marathon Oil - Kenedy, TX

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Marathon Oil has a major leasehold position in the core of the Eagle Ford Shale formation in South Texas. With major acquisitions in the Eagle Ford play in 2011, Marathon Oil has captured a top-five acreage position in this liquids-rich resource play. The Company holds approximately 300,000 net acres in the Eagle Ford, with an average working interest of 80 percent in its Company-operated assets. Marathon Oil’s activity is focused on Atascosa, DeWitt, Gonzales, Karnes and Wilson counties. The Company currently has 20 rigs operating in the play, with plans to achieve production of approximately 100,000 net mboed by 2016.

  • Monitors and operates wells and associated surface equipment, including pumps, natural gas compressors, pumping units, valves, tanks, and other vessels, and helps maintain a safe work environment for the company. Gauges and records tanks and gas meters. Opens and closes valves and tank hatches.
  • Inspects equipment for safety problems, leaks, or wear and tear and makes or recommends appropriate repairs. Procures necessary materials and supplies to complete daily tasks Reads automatic gauges, at specified intervals, to determine flow rate of oil into or out of tanks and the amount of oil in tanks.
  • Operates pumps and mobile telephone/radio. Turns bleeder valves or lowers sample container into tank to obtain oil sample. Retrieves and performs required tests for quality and integrity on product samples.
  • Maintains logs of meter readings, test results, and adjustments made. Lowers thermometer into tanks to obtain temperature reading. Completes “Daily Production Sheets,” and reports results to designated office by daily deadline. Completes “8-Day Gauge Reports” with ending and beginning tank levels, and reports results to designated office on a monthly basis. Completes other daily records, including “Compressor/Dehy/Flare Reports,” “Spill/Sheen/Tank Inspection Reports,” and “Daily Pipeline Surveillance Reports,” and reports results to designated office at the end of each month. Implements company’s “Spill Prevention, Control, and Countermeasures Plan” (SPCC), as needed.
  • Implements and adheres to all company safety policies and procedures and adheres to company’s “Good House-Keeping Rules.” Reports leaks or defective valves to supervisor. Tightens connections with wrenches, and greases and oils valves using grease gum and oilcan. Inspects pipelines, valves, and flanges to detect malfunctions, such as loose connections and leaks. Clamps seal around valves to secure tanks.
  • Records meter and pressure readings at gas well. Records readings and test results. Gauges tank containing petroleum and natural gas byproducts, such as condensate, oil, salt water, or natural gasoline. Starts pumps and opens valves to regulate flow of oil into and out of tanks, according to delivery schedules. Shuts down the equipment, following supervisor’s instructions, in case of an emergency.


Communication: Must possess excellent communication, teamwork, planning, and organizing skills

Education: High School Diploma or equivalent

Experience: Two or more years in the oil & gas industry preferred

Computer Skills: Strong proficiency with Microsoft Office products

Time Management: Ability to handle and prioritize multiple tasks at one time is required

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About this company
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Based in Houston, Texas, Marathon Oil is an independent exploration and production (E&P) with activity in North America, Europe and...