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About Us

Sequent Energy Management, now a Williams company, is delivering innovative solutions for our customers’ complex logistics needs – by finding premium markets and providing creative products for various commodities.

Sequent moves natural gas to markets through transportation and storage agreements on strategically positioned assets, including along Williams’ Transco system. The company focuses on asset management and the wholesale marketing, trading, storage and transportation of natural gas and natural gas liquids (NGLs) for a diverse set of utilities and producers.

We believe in challenging the status quo, providing innovative solutions to complex natural gas and NGL logistics concerns.   

Mark Rueff (Vice President Commodity Marketing)

Why Sequent?


Trading and scheduling professionals with centuries of combined experience and a passion for managing fuel supply and assets for a multitude of industrial, generation and utility customers across North America. 


Proven business model with sound risk management controls and state of the art Energy Trade Risk Management (ETRM) systems.

Credit Worthy

Backed by Williams’ investment grade credit (Moody’s Baa2).

Diversity of Supply

Manager or owner of transportation capacity and storage on majority of pipelines in the United States and Canada with 8 BCF/day firm transportation and 100 BCF of storage.


NAESB agreements with more than 1,800 counterparties ensuring maximum liquidity.


Timely communication and reliability are critical to the success of our clients. For that reason, we provide a dedicated staff that is accessible 24/7/365.

What We Do

Gas & NGL Marketing

Risk Management