50 USC 167a - Authority of Secretary

(a) Extraction and disposal of helium on Federal lands 

(1) In general 
The Secretary may enter into agreements with private parties for the recovery and disposal of helium on Federal lands upon such terms and conditions as the Secretary deems fair, reasonable, and necessary.
(2) Leasehold rights 
The Secretary may grant leasehold rights to any such helium.
(3) Limitation 
The Secretary may not enter into any agreement by which the Secretary sells such helium other than to a private party with whom the Secretary has an agreement for recovery and disposal of helium.
(4) Regulations 
Agreements under paragraph (1) may be subject to such regulations as may be prescribed by the Secretary.
(5) Existing rights 
An agreement under paragraph (1) shall be subject to any rights of any affected Federal oil and gas lessee that may be in existence prior to the date of the agreement.
(6) Terms and conditions 
An agreement under paragraph (1) (and any extension or renewal of an agreement) shall contain such terms and conditions as the Secretary may consider appropriate.
(7) Prior agreements 
This subsection shall not in any manner affect or diminish the rights and obligations of the Secretary and private parties under agreements to dispose of helium produced from Federal lands in existence on October 9, 1996, except to the extent that such agreements are renewed or extended after October 9, 1996.
(b) Storage, transportation, and sale 
The Secretary may store, transport, and sell helium only in accordance with this chapter.