SEI Operating, LLC is a highly successful, fully integrated oil and gas exploration and production company located on the Northshore of New Orleans in Mandeville, Louisiana. 

We provide comprehensive drilling, completion, stimulation engineering and field supervision services for energy-related properties throughout the United States.  Our operating areas are characterized by long-lived natural gas and oil reserves and established production capabilities with abundant growth opportunities.

SEI’s success comes as a result of using the most advanced research methods to identify drilling prospects and timely property acquisitions.  In addition, SEI’s consultants and staff are highly skilled professionals that are well known industry leaders in drilling for oil and natural gas.


Our very competent and experienced team collectively bring more than 170 years of hands-on oil and gas experience. Our geologists and engineers generate drilling prospects using petroleum geology, 2-D and 3-D geophysical techniques as well as the most advanced petroleum engineering techniques. 

Particular strengths in Field Management, Petroleum Geology, Exploration, Acquisition and Reworking wells in well-known oil and gas fields previously discovered by the majors such as Chevron, Shell Oil, Exxon and Gulf Oil.  SEI is well positioned to capitalize on extraordinary opportunities in the business of reworking mature oil and gas wells.

SEI currently operates in Louisiana, Mississippi, and Texas.  SEI’s Services Include:
- Field Development planning, installation & operation 
- Project cost & management 
- Secondary & tertiary recovery processes 
- Supervision of all business phases through completion & re-entries


The Look Ahead

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Oil prices hit highest level in 7 months

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Oil Extends Gain from Three Month High on Falling US Output

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Oil Price Rally Continues, Hitting 2016 High

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    L.P. Brown, iii


    (985) 246-3026 

    1070-B W. Causeway Approach
    Mandeville, LA 70471