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Dear Mitsui E&P USA LLC (“MEPUSA”) Owner,

We are pleased to announce that MEPUSA has partnered with Oildex to provide a new Owner Relations section to the MEPUSA website.

PLEASE NOTE: On 10/1/2019, the current RPS site will no longer be available, and you will be redirected automatically to the new Oildex portal.

Please click on this link below to redirect to the new Oildex site.

If you have any questions, please refer to the numbers below.

Issues and Questions


Contact Information

Assistance with the new site


(855) 301-5241 or

Royalty or statement related questions


(855) 560-4755 or

We hope you enjoy MEPUSA’s new Owner Relations website!



Mitsui E&P USA, LLC



Welcome to Mitsui E&P's Royalty Payment System. Please log in using the link at the top right of the page.


You can perform the following tasks using this site:

  • Review and download monthly statements
  • Download related documents
  • Download Change of Address Form

If you have problems logging into the site, please contact Mitsui E&P via email at, or by phone at 1-855-560-4755.

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