Commissioning & startup
Operations-focused support as your facility moves from construction toward first gas and stable operation. Bring practical plant experience into commissioning and startup planning.
Natural gas / Midstream operations
From first gas.
To steady state.
Hands-on operations expertise for the moments that matter. Commissioning, startup, and contract operations support for natural gas plants.
INDEPENDENT EXPERTISE. DIRECT ACCOUNTABILITY.COMMISSION → START UP → OPERATE
10+ yearsNatural gas plant operations experience
CryogenicProcessing & dehydration systems
Amine treatingAcid gas & sulfur recovery experience
01 / Core capabilities
The right experience.
At the right phase.
Contract operations
Experienced operator support for natural gas processing facilities. Engage directly for defined assignments, operating coverage, and support through demanding project transitions.
Operations consulting
Practical support for plant troubleshooting, pre-startup readiness, procedure review, and gas control. Define the operating challenge and bring field and DCS control room experience to the assignment.
Operator training
Train the crews who run the plant. Hands-on field and DCS control room training supports the transition from commissioning and startup into day-to-day operations.
Gas plant systems
Experience across
the process.
From treating and dehydration to cryogenic processing and acid gas handling.
Amine treating
Gas sweetening systems
TEG systems
Triethylene glycol systems
EG systems
Ethylene glycol systems
Molecular sieve
Molecular sieve dehydration
AGI
Acid gas injection
SRUs
Sulfur recovery units
Cryogenics
Cryogenic gas processing
Supporting systems
NRU, refrigeration, CO₂ compression and injection, compressors, pumps, turbines, separators, and DCS control rooms
Selected field work
Experience earned
at the plant.
Selected assignments from Terry Deville’s professional experience as part of multidisciplinary teams, including work performed through Midstream Operators, LLC before founding Deville Enterprises LLC in May 2026.
Jal, New Mexico / 120 MMSCFD
Northwinds Midstream · Titan Treater
Supported commissioning and startup; trained operators.
Eunice, New Mexico / 150 MMSCFD
Delek · Libby 2 Cryogenic Plant
Supported commissioning of the second train.
Tioga, North Dakota / 30 MMSCFD
Silver Hill Energy · Cryogenic Plant
Supported commissioning and startup; trained employees on the second train.
Pine Bluffs, Wyoming
Tallgrass · CO₂ Injection Facility
Supported commissioning and startup; operated the facility.
Additional plant operations experience: MPLX Tornado, Loving County, TX (400 MMSCFD); PLMP “The Dude” with NRU, Hobbs, NM (200 MMSCFD); Summit Midstream, Briggsdale, CO (25 MMSCFD).
02 / About Terry
Hands-on experience.
Direct accountability.
I’m Terry Deville, founder of Deville Enterprises LLC.
I bring 10+ years of experience across gas plant, liquids, and asphalt operations, with hands-on work in commissioning, startup, operator training, and plant operations. My background spans the field and the DCS control room.
My gas plant systems experience includes amine treating, TEG and EG systems, molecular sieve dehydration, acid gas injection, sulfur recovery units, and cryogenics. I’ve helped bring facilities online and trained the crews who operate them.
I founded Deville Enterprises LLC in May 2026 to provide midstream companies with experienced, practical operations support. When you engage my company, you work directly with me to define the assignment, coordinate with your team, and carry out the agreed scope.
I hold an associate’s degree in Process Technology from ITI Technical College and am based in Miramar Beach, Florida. I travel to site, with field experience in the Permian Basin, Colorado, Wyoming, and North Dakota.
Talk with Terry ↗03 / Working together
Clear scope.
Practical execution.
Start with the plant.
Discuss the process, project phase, timeline, and operating challenge. Identify where experienced support can make a difference.
Set the assignment.
Agree on responsibilities, deliverables, shift needs, and contractor onboarding requirements before work begins.
Get to work.
Coordinate with your team around the agreed scope, site procedures, and communication expectations.
04 / Your next project
Let's talk
plant operations.
Preparing for first gas? Need experienced operating support? Tell Terry about your facility, timing, and scope to start the conversation.
tdeville@devilleenterprises.net
(305) 240-2163
Send your inquiry directly from this page. Your contact details and project information will be emailed to Terry through FormSubmit. Please keep initial inquiries general and omit confidential plant data, passwords, and financial details.