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Form 3 - Initial statement of beneficial ownership of securities:
SEC Accession No. 0001209191-09-057234
Filing Date
2009-12-16
Accepted
2009-12-16 11:07:39
Documents
1
Period of Report
2009-12-16

Document Format Files

Seq Description Document Type Size
1 MAIN DOCUMENT DESCRIPTION c93687_3x0.html 3  
1 MAIN DOCUMENT DESCRIPTION c93687_3x0.xml 3 8901
  Complete submission text file 0001209191-09-057234.txt   12631
Mailing Address ONE LAFAYETTE PLACE GREENWICH CT 06830
Business Address ONE LAFAYETTE PLACE GREENWICH CT 06830 203-661-6601
FIRST RESERVE FUND XI L P (Reporting) CIK: 0001372777 (see all company filings)

Type: 3 | Act: 34 | File No.: 001-34579 | Film No.: 091243538

Mailing Address TWO POST OAK CENTRAL 1980 POST OAK BOULEVARD, SUITE 1200 HOUSTON TX 77056
Business Address TWO POST OAK CENTRAL 1980 POST OAK BOULEVARD, SUITE 1200 HOUSTON TX 77056 (713) 579-9101
Cobalt International Energy, Inc. (Issuer) CIK: 0001471261 (see all company filings)

IRS No.: 270821169 | Fiscal Year End: 1231
SIC: 1311 Crude Petroleum & Natural Gas

Mailing Address ONE LAFAYETTE PLACE THIRD FLOOR GREENWICH CT 06830
Business Address ONE LAFAYETTE PLACE THIRD FLOOR GREENWICH CT 06830 203-661-6601
First Reserve GP XI, Inc. (Reporting) CIK: 0001477477 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-34579 | Film No.: 091243537

Mailing Address ONE LAFAYETTE PLACE THIRD FLOOR GREENWICH CT 06830
Business Address ONE LAFAYETTE PLACE THIRD FLOOR GREENWICH CT 06830 203-661-6601
First Reserve GP XI, L.P. (Reporting) CIK: 0001477478 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 3 | Act: 34 | File No.: 001-34579 | Film No.: 091243536

Mailing Address C/O FIRST RESERVE CORPORATION ONE LAFAYETTE PLACE, THIRD FLOOR GREENWICH CT 06830
Business Address C/O FIRST RESERVE CORPORATION ONE LAFAYETTE PLACE, THIRD FLOOR GREENWICH CT 06830 203-661-6601
FR XI Onshore AIV, L.P. (Reporting) CIK: 0001478713 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1209
Type: 3 | Act: 34 | File No.: 001-34579 | Film No.: 091243535