GASTAR is ENSYTE’s flagship Natural Gas Transaction Management platform, designed to help utilities, marketers, producers, and pipelines manage every step of the gas lifecycle—purchases, sales, scheduling, trading, storage, reconciliation, and compliance.
Designed by users for users, GASTAR streamlines operations with fewer clicks, fewer spreadsheets, and smarter workflows. Whether you’re handling gas supply, transportation, or marketing, GASTAR gives your team the tools to optimize revenue, reduce risk, and deliver strategic value across your business.
Eliminate manual work and disconnected systems by automating tasks across supply, scheduling, billing, and reconciliation. GASTAR simplifies complex operations into one seamless workflow, helping your team work faster and smarter.
GASTAR’s modular design supports every sector of the natural gas supply chain. Whether you need a single module or a fully integrated platform, it adapts to the unique needs of your market—offering the flexibility required for LDCs, marketers, producers, and more.
Manage contracts, nominations, and reconciliation.
Support pooling, imbalance settlement, and CIS integration.
Automate plant allocation and track gas flows.
Forecast supply, perform netback settlement, and manage ownership.
Handle high-volume trading, scheduling, and billing.
Visualize flow, manage rates, and optimize nominations.
GASTAR manages data from wellhead to burner tip across producers, pipelines, storage, processors, marketers, and LDCs—creating a seamless flow of information through a single integrated system. With over 30 years of industry expertise behind it, the platform is trusted to automate complex workflows, eliminate manual reconciliation, and reduce operational errors across the natural gas supply chain.
Streamline contract management and end-of-month reconciliation. Built for regulated utilities, this module automates critical workflows and improves operational accuracy.
GASTAR replaces outdated systems, redundant data entry, spreadsheets, and workarounds with one centralized solution that handle the entire business cycle.
GASTAR integrates seamlessly with field data capture systems, SCADA, pricing, weather, CIS, SAP, and more.
We offer GASTAR as a full SaaS application or you can host on your environment or a hosted environment of your choice.
We are SOC 2 Type II compliant, independently audited in accordance with AICPA standards. Our platform is designed to meet the security expectations of regulated and enterprise customers:
• SOX compliance
• Role-based user access
• Audit trails & change tracking
• Secure data in transit and at rest
• Hosting environments aligned with SOC 2, HIPAA, PCI, and GLBA standards
Manual contract management and reconciliation were slowing performance and increasing errors. Inconsistent Communication and data management of 2 separate systems that needed to be in sync, causing accounting mismatches and other errors.
ENSYTE implemented GASTAR to automate the gas supply business, reducing the time needed to manage contracts and the amount of misinputs. Implement an all-in-one solution for Gas Supply and Retail Choice, eliminating mis- communication and data inconsistencies. Integrate accounting directly into the system with direct invoicing and parallel invoices to confirm external accounting software numbers.
“GASTAR fully integrates the entire gas business into one system, including LNG. Our company is Supplier of Last Resort (SOLR), so it’s nice to know how the choice imbalances are affecting the supply business with a streamlined process, especially where SCADA connections are concerned. All the data is in one place for regulatory filings, not to mention the cost savings for keeping and maintaining one system, training people, and more.”
– Manager, Gas Supply & Retail Operations
