Grynberg Ex Rel. Trust v. Kinder Morgan Energy Partners, L.P.

MATHESON, Circuit Judge.

Celeste C. Grynberg — individually and as trustee on behalf of the Rachel Susan Trust, Stephen Mark Trust, and Miriam Zela Trust — and Jack J. Grynberg petitioned the federal district court to vacate an arbitration award that had been entered against them and in favor of Kinder Morgan Energy Partners, L.P. (“KMEP”) and Kinder Morgan C02 Company, L.P. (“KMC02,” and together with KMEP, “Kinder Morgan entities”).

The Grynbergs invoked the court’s diversity jurisdiction. When they filed the action, the Grynbergs were citizens of Colorado, KMEP was a Delaware master limited…