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Filing Detail
Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000902219-01-000051
Filing Date
2001-02-12
Accepted
2001-02-12 00:00:00
Documents
1

Document Format Files

Seq Description Document Type Size
1 0001.txt SC 13G/A 9340
  Complete submission text file 0000902219-01-000051.txt   11408
Mailing Address 75 STATE STREET BOSTON MA 02109
Business Address 75 STATE STREET BOSTON MA 02109 6179515000
WELLINGTON MANAGEMENT CO LLP (Filed by) CIK: 0000902219 (see all company filings)

IRS No.: 042683227 | State of Incorp.: MA | Fiscal Year End: 1231
SIC: 0000

Mailing Address 155 INVERNESS DRIVE WEST SUITE 200 ENGLEWOOD CO 80112-5004
Business Address 155 INVERNESS DRIVE WEST SUITE 200 ENGLEWOOD CO 80112-5004 3032908700
MARKWEST HYDROCARBON INC (Subject) CIK: 0001019756 (see all company filings)

IRS No.: 841352233 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-48899 | Film No.: 1533920
SIC: 4924 Natural Gas Distribution