Because we value the relationship with our Interest Owners, we are pleased to provide helpful information and online support. Please call, write or email us if you have any questions or concerns that are not addressed on our website. The Helpline's phone number is 800.220.5824. To contact Rosetta Resource's helpline, select option 1 and for Noble Energy's helpline select option 2. Then follow the prompts to select from the options listed below to obtain help with your question or issue.