Letters of Invitation are available by request.

You may submit your request to letterofinvitation@petrophase2014.com.

Please include the following information in your request:

• Name exactly as listed on passport

• Date  of Birth

• Planned Travel Dates into The United States – Arrival and Departure

• Name of US City You Plan To Arrive and Depart From

• Your Mailing Address

• Your Email Address

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