Underground Storage Gas Intern

We have an exciting opportunity for an Underground Storage Gas Intern to join the team! 

The successful candidate will be responsible for assisting Underground Gas Storage geologists and engineers in monitoring, maintaining, and optimizing the performance of natural gas reservoirs used for seasonal storage. These reservoirs store natural gas in subsurface rock formations. The successful candidate will help ensure the system operates safely, efficiently, and reliably.

This position is located at Citizens Energy Group at 3493 W 990 N, Worthington, IN 47471.

Under the general supervision of the Manager Storage Operations, an intern will gain exposure to the following: 

• Compile and analyze well pressure, temperature, and production/injection data
• Track reservoir performance over time using SCADA systems, spreadsheets, or database tools.
• Help calculate gas volumes, deliverability, and storage inventory balance.
• Prepare plots or dashboards showing trends (e.g., pressure vs. time, injection/withdrawal rates).
• Assist in well testing and analysis.
• Observe wireline, logging, or well service operations.
• Participate in pipeline inspections, pigging, or valve maintenance.
• Collect fluid samples for lab analysis
• Review subsurface maps and cross-sections to understand reservoir structure.
• Help update geologic models or interpret well logs.
• Learn how porosity, permeability and structure affect storage behavior.
• Contribute to GIS or mapping projects to visualize field data.
• Assist in flow calculations, compressor performance checks, or pipeline hydraulics.
• Observe maintenance or construction projects.

• Active attendance at a college or university with emphasis in mechanical, chemical, or petroleum engineering or geologic science, or general engineering, science, environmental studies, or related field.
• A current Grade Point Average of 2.75 or higher.
• Ability to work at Citizens' Underground Storage Office located in Worthington, IN.

Preferred Skills/Qualifications:      

• Valid State of Indiana, Bureau of Motor Vehicles Operator's License.
• Experience preferred in Microsoft Windows 11 and Office Suite.
• Ability to communicate and interact effectively and successfully with project managers, staff engineers, and other team members.

Job Posting Deadline: January 5, 2026 
 
Citizens is a drug-free, Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, age, color, religion, creed, sex, sexual orientation, gender identity, national origin, disability, or protected Veteran status.