Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0001104659-18-009721
Filing Date
2018-02-14
Accepted
2018-02-14 16:11:19
Documents
1
Period of Report
2018-02-09

Document Format Files

Seq Description Document Type Size
1 3 a3.html 3  
1 3 a3.xml 3 16920
  Complete submission text file 0001104659-18-009721.txt   22542
Mailing Address 15021 KATY FREEWAY SUITE 400 HOUSTON TX 77094
Business Address 15021 KATY FREEWAY SUITE 400 HOUSTON TX 77094 281-530-0991
Alta Mesa Resources, Inc. /DE (Issuer) CIK: 0001690769 (see all company filings)

EIN.: 814433840 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 6770 Blank Checks

Mailing Address C/O RIVERSTONE HOLDINGS 712 FIFTH AVENUE, 36TH FLOOR NEW YORK NY 10019
Business Address C/O RIVERSTONE HOLDINGS 712 FIFTH AVENUE, 36TH FLOOR NEW YORK NY 10019 (212) 993-0076
Riverstone Management Group, L.L.C. (Reporting) CIK: 0001705948 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38040 | Film No.: 18612374

Mailing Address C/O RIVERSTONE HOLDINGS 712 FIFTH AVENUE, 36TH FLOOR NEW YORK NY 10019
Business Address C/O RIVERSTONE HOLDINGS 712 FIFTH AVENUE, 36TH FLOOR NEW YORK NY 10019 (212) 993-0076
Riverstone/Gower Mgmt Co Holdings, L.P. (Reporting) CIK: 0001706129 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38040 | Film No.: 18612377

Mailing Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019
Business Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019 (212) 993-0076
Riverstone AMR Partners, L.P. (Reporting) CIK: 0001720755 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38040 | Film No.: 18612383

Mailing Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019
Business Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019 (212) 993-0076
Riverstone AMR Partners-T, L.P. (Reporting) CIK: 0001725315 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38040 | Film No.: 18612380

Mailing Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019
Business Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019 (212) 993-0076
Riverstone AMR Partners-U, LLC (Reporting) CIK: 0001725445 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38040 | Film No.: 18612381

Mailing Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019
Business Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019 (212) 993-0076
Riverstone Energy Partners VI (Non-U.S.), LLC (Reporting) CIK: 0001730315 (see all company filings)

State of Incorp.: E9 | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38040 | Film No.: 18612379

Mailing Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019
Business Address C/O RIVERSTONE HOLDINGS LLC 712 FIFTH AVENUE, 19TH FLOOR NEW YORK NY 10019 (212) 993-0076
Riverstone VI Alta Mesa Holdings, L.P. (Reporting) CIK: 0001731391 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-38040 | Film No.: 18612372