Tenth Circuit Finds Non-Signatory May Compel Arbitration Based on Equitable Estoppel

Defendant SemGroup Corp. and intervenor-defendant Cypress Environmental Management-TIR appealed an Oklahoma district court order denying their motions to compel arbitration. The plaintiff, Robert Ferrell, was a Cypress employee. He and Cypress entered into an employment agreement containing an arbitration clause, but SemGroup was not a party to that agreement. After Ferrell filed a putative class action against SemGroup, SemGroup moved to dismiss and compel arbitration, relying on the arbitration clause in the Ferrell/Cypress employment agreement. Cypress intervened, and both Cypress and SemGroup moved to dismiss and compel arbitration, arguing: (1) there was a question of arbitrability to be decided by the arbitrator as to whether a delegation clause in the arbitration agreement applied to non-signatories, such as SemGroup; and (2) arbitration of Ferrell’s claims was required based on theories of equitable estoppel. The district court denied the motions to compel, ruling that, based on Belnap v. Iasis Healthcare, 844 F.3d 1272 (10th Cir. 2017), the court, not the arbitrator, is required to decide the arbitrability issue. The court also rejected the movants’ estoppel arguments, finding they did not justify estopping Ferrell from avoiding arbitration.

On appeal, the Tenth Circuit held initially that the district court misapplied Belnap, clarifying that in Belnap the court “expressly declined to consider” whether responsibility for determining if a non-signatory may compel arbitration must be delegated to the arbitrator. The Tenth Circuit declined to decide that issue here as well, ruling instead that the motion to compel should have been granted based on equitable estoppel. Noting that the posture and issues in this case were nearly identical to those raised in a prior Tenth Circuit decision also involving Cypress, the court found the Oklahoma Supreme Court would recognize a “concerted misconduct estoppel” theory where, as here, a signatory (Ferrell) asserted allegations of “substantially interdependent and concerted misconduct” by a non-signatory (SemGroup) and another signatory (Cypress). This case, the court ruled, is “precisely the type of lawsuit that ‘concerted misconduct estoppel’ was designed to address.” As such, the Tenth Circuit reversed and remanded the district court order, finding Ferrell should be estopped from avoiding arbitration.

Ferrell v. Cypress Environmental Management-TIR, LLC, No. 20-5092 (10th Cir. Nov. 30, 2021).

©2026 Carlton Fields, P.A. Carlton Fields practices law in California through Carlton Fields, LLP. Carlton Fields publications should not be construed as legal advice on any specific facts or circumstances. The contents are intended for general information and educational purposes only, and should not be relied on as if it were advice about a particular fact situation. The distribution of this publication is not intended to create, and receipt of it does not constitute, an attorney-client relationship with Carlton Fields. This publication may not be quoted or referred to in any other publication or proceeding without the prior written consent of the firm, to be given or withheld at our discretion. To request reprint permission for any of our publications, please use our Contact Us form via the link below. The views set forth herein are the personal views of the author and do not necessarily reflect those of the firm. This site may contain hypertext links to information created and maintained by other entities. Carlton Fields does not control or guarantee the accuracy or completeness of this outside information, nor is the inclusion of a link to be intended as an endorsement of those outside sites.

Perspectives on reinsurance and arbitration law and practice.

Recent Posts

Editorial Contacts

Archives

Jump to Page

Carlton Fields, P.A. Cookie Preference Center

Your Privacy

When you visit our website, we use cookies on your browser to collect information. The information collected might relate to you, your preferences, or your device, and is mostly used to make the site work as you expect it to and to provide a more personalized web experience. For more information about how we use Cookies, please see our Privacy Policy.

Strictly Necessary Cookies

Always Active

Necessary cookies enable core functionality such as security, network management, and accessibility. These cookies may only be disabled by changing your browser settings, but this may affect how the website functions.

Functional Cookies

Always Active

Some functions of the site require remembering user choices, for example your cookie preference, or keyword search highlighting. These do not store any personal information.

Form Submissions

Always Active

When submitting your data, for example on a contact form or event registration, a cookie might be used to monitor the state of your submission across pages.

Performance Cookies

Performance cookies help us improve our website by collecting and reporting information on its usage. We access and process information from these cookies at an aggregate level.

Powered by Firmseek