Reservoir Engineer

Naperville, IL

This position may be filled as Engineer I, II, III or Sr. Individuals who demonstrate advanced skills in terms of work experience, education, and certifications may be eligible for the more advanced position.


Reservoir Engineer, Reservoir Engineering, provides technical and functional expertise to effectively and efficiently maximize the deliverability and operability of Southern Company Gas’s storage assets. This is achieved through detailed analysis, evaluation, monitoring, and continuous enhancement of existing reservoir, well, and ancillary facilities for all 8 Nicor assets. This role will also perform critical design, planning, and execution functions for all new storage assets in the UGS system.


Functional Expertise:

  • Designs, builds and utilizes analysis models and tools for optimization of facilities and project development

  • Solves complex engineering problems and delivers accurate cost estimates and feasibility analysis

  • Conduct reservoir and individual well analysis of storage assets to predict, monitor, and manage reservoir performance.

  • Perform reservoir studies to track reservoir performance as compared to predicted performance in order to develop optimal schedules and forecasts of individual reservoir deliverability.

  • Work closely with field staff and other engineering disciplines to identify and carry out remedial opportunities on wells and associated facilities.

  • Identify workover/recompletion, stimulation, and integrity investigation candidates.

  • Supervise well workover field activities

  • Develop, maintain, and execute reservoir models on storage assets

  • Prepare detailed procedures and AFE cost estimates for rig workovers, routine well work, and logging activities.

Business Acumen:

  • Identifies and facilitates the development of the commercial possibilities associated with current assets and potential projects

  • Participate in and consistently provide clear recommendations in design/analysis discussions with internal and external parties

  • Analyze reservoir and/or cavern data in order to guide commercial and field operations to obtain the greatest economic benefit while maintaining operational integrity.

  • Performs due diligence studies for acquisitions and development of storage opportunities.


  • Interfaces with department and SCG leadership to articulate plans and results, as well as other engineering departments on major project initiatives

  • Communicates with external counterparties on the details of the projects specifics (capacity, deliverability, etc.)

  • Coordinate the initial engineering analysis, modeling, design, and costing of subsurface facilities for proposed projects / acquisitions

  • Work with locations to efficiently run storage facilities / key stakeholder during critical operating periods

Driving Results:

  • Utilizes internal and external resources to achieve desired results for multiple projects/storage fields simultaneously

  • Identify project risks and develop means to mitigate risks

Education, Certifications/Licenses:


  • BA/BS in Engineering

  • Valid drivers license


  • BA/BS in Petroleum or Geological Engineering

  • Project Management Professional Certification

  • MBA

  • Master/PhD in Engineering

Related Work Experience:


  • 0 - 2 years underground storage engineering and operations, reservoir/production engineering in underground gas storage operations (Engineer I)

  • 3 - 4 years underground storage engineering and operations, reservoir/production engineering in underground gas storage operations (Engineer II)

  • 5 - 9 years underground storage engineering and operations, reservoir/production engineering in underground gas storage operations (Engineer III)

  • 10+ years underground storage engineering and operations, reservoir/production engineering in underground gas storage operations (Engineer, Sr.)

Specific Skills & Knowledge:


  • MS Office

  • Attention to detail

  • Ability to read, interpret, and implement codes, standards, and procedures

  • Ability to identify process improvements and work with others to develop appropriate processes and procedures

  • Strong analytical skills

  • Strong written and oral communication skills


  • Strong understanding of reservoir analysis and well design.

  • Proficient understanding of reservoir modeling.

  • Familiarity with industry software (Petrel, Wellview, Avocet, OFM, Petrocode, Surfer, etc.)

Working Conditions/Physical Requirements:

  • Dynamic, fast-paced, demanding environment

  • Ability to work extended hours

  • Occasional Traveler (5 – 20% Travel)

Disclaimer: This information describes the general nature and level of work performed by employees in this job. The description is not designed to be a comprehensive inventory of duties, responsibilities and qualifications required in the job. Reasonable accommodations may be made to qualified disabled individuals for performance of essential duties and responsibilities.

About Southern Company Gas

Southern Company Gas is a wholly owned subsidiary of Atlanta-based Southern Company (NYSE:SO), America’s premier energy company. Southern Company Gas serves approximately 4.2 million natural gas utility customers through its regulated distribution companies in four states and approximately 600,000 retail customers through its companies that market natural gas. Other nonutility businesses include investments in interstate pipelines and ownership and operation of natural gas storage facilities. For more information, visit .

Southern Company (NYSE: SO) is a leading energy provider serving 9 million residential and commercial customers across the Southeast and beyond through its family of companies. Providing clean, safe, reliable and affordable energy with excellent service is our mission. The company has electric operating companies in three states, natural gas distribution companies in four states, a competitive generation company, a leading distributed energy infrastructure company with national capabilities, a fiber optics network, and telecommunications services. Through an industry-leading commitment to innovation, resilience, and sustainability, we are taking action to meet our customers’ and communities’ needs while advancing our commitment to net zero emissions by 2050. Our uncompromising values ensure we put the needs of those we serve at the center of everything we do and are the key to our sustained success. We are transforming energy into economic, environmental and social progress for tomorrow. Our corporate culture and hiring practices have earned the company national awards and recognition from numerous organizations, including Forbes, Military Times, DiversityInc, Black Enterprise, J.D. Power, Fortune, Human Rights Campaign and more. To learn more, visit

Southern Company is an equal opportunity employer where an applicant's qualifications are considered without regard to race, color, religion, sex, national origin, age, disability, veteran status, genetic information, sexual orientation, gender identity or expression, or any other basis prohibited by law.

Job Identification: 5479

Job Category: Engineering

Job Schedule: Full time

Company: Nicor Gas