Seneca Resources Company, LLC Tech Stack

E&P subsidiary scaling legacy modernization and OT security across Appalachian operations

Oil and Gas Houston, Texas 201–500 employees Founded 1913 Public Company

Seneca Resources operates as the exploration-and-production arm of National Fuel Gas, focused on natural gas development across the Marcellus and Utica shales. The tech stack reveals a heavy legacy footprint (COBOL, CICS, z/OS, WebSphere) paired with modern cloud infrastructure (Azure, Snowflake, .NET Core) — a classic mid-migration posture. Active hiring is concentrated in engineering (40 roles) and security (13), with senior-level dominance (62 of 110 posted), indicating pressure to modernize core systems and fortify OT cybersecurity while managing aggressive delivery timelines and federal compliance requirements.

Tech Stack 200 technologies

Core StackServiceNow Azure DevOps Jira Java Maven Ansible AutoCAD Revit Snowflake C# .NET SQL Server Power BI Python JavaScript Node.js Next.js React GitLab CI/CD Jakarta EE SOAP XML OpenAPI WebSphere COBOL CICS z/OS STAAD ASP.NET Core ASP.NET MVC+170 more

AdoptingRed Hat

What Seneca Resources Company, LLC Is Building

◆Challenges

Compliance with phi
Ensuring compliance and governance
Ensuring federal security compliance
Improving cost visibility
Improving system integrations
Incident lifecycle management
Modernizing legacy applications
Protecting ot environments
Integrating distributed applications with core banking platform
Aggressive delivery timelines

▲Active Projects

Enhancing applications integrating distributed applications with core banking platform
Data integrations
Major incident response
Integrated data-heavy .net web application ui development
Ot cybersecurity projects
Servicenow modules implementation (itsm, itom, hrsd)
Programming and troubleshooting robotic welding systems
Model activation
Measurement frameworks
Commercial construction projects

Hiring Activity

Accelerating120 roles · 90 in 30d

Department

Engineering

Security

Ops

Data

Support

Marketing

Construction

Seniority

Senior

Mid

Junior

Staff

Manager

Lead

Notable leadership hires: Test Lead, ServiceNow Engagement Lead

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About Seneca Resources Company, LLC

Seneca Resources, founded in 1913 and now a public subsidiary of National Fuel Gas, explores for and produces natural gas across the Appalachian Region, particularly the Marcellus and Utica shales. The company operates from Houston, Texas with a workforce of 201–500 employees. Current operational priorities span system modernization (distributed application integration, legacy app refactoring), operational technology security, incident management workflows, and robotic system automation. The organization is actively hiring across engineering, security, and ops to accelerate these initiatives while meeting federal compliance and cost-visibility demands.

HeadquartersHouston, Texas

Company Size201–500 employees

Founded1913

Hiring MarketsUnited States

Frequently Asked Questions

What is Seneca Resources' main business?

Seneca Resources is the exploration-and-production subsidiary of National Fuel Gas Company, headquartered in Houston, Texas. It explores for, develops, and produces natural gas in the Appalachian Region, including the Marcellus and Utica shales.

What technology stack does Seneca Resources use?

Seneca runs a hybrid stack: legacy systems (COBOL, CICS, z/OS, WebSphere), enterprise platforms (ServiceNow, Azure DevOps, Jira), data infrastructure (Snowflake, SQL Server, Power BI), and modern web frameworks (.NET Core, React, Node.js). Currently adopting Red Hat.

How this profile is built

Seneca Resources Company, LLC's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.