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Form SC 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0000812295-17-000101
Filing Date
2017-02-13
Accepted
2017-02-13 15:11:41
Documents
1

Document Format Files

Seq Description Document Type Size
1 SC 13G TUSK 12.31.17 tusk2102017.txt SC 13G 8131
  Complete submission text file 0000812295-17-000101.txt   9987
Mailing Address 151 DETROIT ST. DENVER CO 80206-4805
Business Address 151 DETROIT ST. DENVER CO 80206-4805 3033333863
JANUS CAPITAL MANAGEMENT LLC (Filed by) CIK: 0000812295 (see all company filings)

IRS No.: 753019302 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G
SIC: 0000

Mailing Address 4727 GAILLARDIA PARKWAY SUITE 200 OKLAHOMA CITY OK 73142
Business Address 4727 GAILLARDIA PARKWAY SUITE 200 OKLAHOMA CITY OK 73142 405-608-6007
Mammoth Energy Services, Inc. (Subject) CIK: 0001679268 (see all company filings)

IRS No.: 320498321 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G | Act: 34 | File No.: 005-89809 | Film No.: 17598553
SIC: 1389 Oil & Gas Field Services, NEC