Houston, Texas. February 9, 2026 — HWCG, LLC announced today that they have contracted WellCTRL® Engineering to deliver integrated oil spill and hazardous environmental modelling designed to protect people, property, and the environment.
As part of this agreement, WellCTRL® will apply PARSim® (Plume & Atmospheric Release Simulator) an advanced, dynamic, compositional fully integrated 3D modelling platform capable of simulating the complete subsea-to-atmosphere release continuum. PARSim® supports realistic modelling of complex offshore scenarios, including blowouts and accidental releases, with time-varying release rates and evolving source conditions.

PARSim® combines regulator-recognized scientific methods into one unified simulation framework, integrating:

• • Near-field subsea plume behavior
  • Far-field transport and spill trajectory
  • Oil weathering and fate
  • Vapor and atmospheric dispersion, including VOC tracking and LEL exceedance / exclusion zone definition

This integrated capability helps improve planning, consequence evaluation, and response decision-making, supporting both emergency response operations and regulatory-aligned preparedness. Integration of WellCTRL® as one of HWCG’s Response Providers is extremely important for sustaining a quick and comprehensive response that accomplishes the missions stated in 40 CFR § 300.317 — National Response Priorities which prioritize worker safety 1st and stopping the flow of oil into the environment 2nd

“At HWCG, protecting life, property, and the environment is always the priority,” said Craig T. Castille, Managing Director of HWCG, LLC. “By partnering with WellCTRL and leveraging PARSim®, we’re strengthening our ability to evaluate high-consequence scenarios with speed, technical rigor, and operational relevance.”
Amir Paknejad, Managing Director at WellCTRL® Engineering, adds:
“We’re proud to support HWCG by providing its members with integrated modelling that connects subsea plume dynamics to surface spill behavior and atmospheric dispersion. 
PARSim® delivers technically defensible outputs that help clients plan, respond, and protect what matters most.”

About HWCG, LLC
HWCG, LLC supports operational readiness and emergency response preparedness for its members through agreements with Response Providers for specialized equipment and personnel resources which are focused on protecting people, property, and the environment.

About WellCTRL®
WellCTRL provides emergency response, advanced well control engineering support, integrated modelling and technical decision-support for oil spill, hazardous environmental release, and atmospheric dispersion scenarios—supporting response planning, risk assessment, and operational execution.

Accounts to be linked
HWCG: https://www.linkedin.com/company/hwcg-llc
Craig Castille: https://www.linkedin.com/in/craig-castille-118b703b/
WellCTRL Engineering LinkedIn: https://www.linkedin.com/company/wellctrl%C2%AE-engineering/
Amir Paknejad:  https://www.linkedin.com/in/amir-paknejad-ph-d-p-e-4928ba116/
Website: www.WellCTRLeng.com