13G Filing: Davidson Kempner Partners and Osprey Energy Acquisition Corp (OSPRU)

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JOINT FILING AGREEMENT
PURSUANT TO RULE 13d-1(k)

The undersigned acknowledge
and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments
to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing additional
joint filing agreements. The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and
for the completeness and accuracy of the information concerning him or it contained herein and therein, but shall not be responsible
for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason
to believe that such information is inaccurate.

DATE:
July 31, 2017

davidson kempner partners
By: MHD Management Co.,
its General Partner
By: MHD Management Co. GP, L.L.C.,
its General Partner
/s/ Thomas L. Kempner, Jr.
Name:  Thomas L. Kempner, Jr.
Title:    Executive Managing Member
DAVIDSON KEMPNER institutional partners, L.P.
By: Davidson Kempner Advisers Inc.,
its General Partner
/s/ Thomas L. Kempner, Jr.
Name:  Thomas L. Kempner, Jr.
Title:    President
davidson kempner international, ltd.
By: Davidson Kempner Capital Management LP,
its Investment Manager
/s/ Thomas L. Kempner, Jr.
Name:  Thomas L. Kempner, Jr.
Title:    Executive Managing Member
davidson kempner CAPITAL MANAGEMENT LP
/s/ Thomas L. Kempner, Jr.
Name:  Thomas L. Kempner, Jr.
Title:    Executive Managing Member
/s/ Thomas L. Kempner, Jr.
THOMAS L. KEMPNER, JR.
/s/  Robert J. Brivio, Jr.
ROBERT J. BRIVIO, JR.

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