Exhibit 3.1
STATEofDELAWARE
LIMITED LIABILITY COMPANY
CERTIFICATE OF FORMATION
OF
MONTANA MERGER SUB II, LLC
Pursuant to Title 6, Chapter 18, Sections 201 and 204
of the Delaware Code
This Certificate of Formation ofMontana Merger Sub II, LLC is being duly executed and filed by William J. Valle, as an authorized person, to form a limited liability company under the Delaware Limited Liability Company Act (6Del.C. § 18-101,etseq.), as amended from time to time.
(1) The name of the limited liability company formed hereby isMontana Merger Sub II, LLC.
(2) The address of the registered office of the limited liability company in the State of Delaware is care of:
Corporation Service Company
2711 Centerville Road, Suite 400
Wilmington, DE 19808
(3) The name and address of the registered agent of the limited liability company for service of process on the limited liability company in the State of Delaware is:
Corporation Service Company
2711 Centerville Road, Suite 400
Wilmington, DE 19808
IN WITNESS WHEREOF, the undersigned has executed this Certificate of Formation as of the 17th day of November, 2016.
| /s/ William J. Valle |
| William J. Valle |
| Authorized Person |
