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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000080255-11-000325
Filing Date
2011-02-10
Accepted
2011-02-10 15:39:21
Documents
1

Document Format Files

Seq Description Document Type Size
1 ACI AS OF 12/31/10 aci13gadec10.txt SC 13G/A 8284
  Complete submission text file 0000080255-11-000325.txt   10395
Mailing Address P.O. BOX 89000 BALTIMORE MD 21289
Business Address 100 EAST PRATT ST BALTIMORE MD 21202 (410)345-
PRICE T ROWE ASSOCIATES INC /MD/ (Filed by) CIK: 0000080255 (see all company filings)

IRS No.: 520556948 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6200 Security & Commodity Brokers, Dealers, Exchanges & Services

Mailing Address CITYPLACE ONE SUITE 300 ARCH MINERAL CORP CREVE COEUR MO 63141
Business Address CITY PLACE ONE STE 300 ARCH MINERAL CORP ST LOUIS MO 63141 3149942700
ARCH COAL INC (Subject) CIK: 0001037676 (see all company filings)

IRS No.: 430921172 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-51233 | Film No.: 11592227
SIC: 1221 Bituminous Coal & Lignite Surface Mining