SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form POSASR - Post-effective Amendment to an automatic shelf registration statement:
SEC Accession No. 0001047469-14-009303
Filing Date
2014-11-18
Accepted
2014-11-18 07:33:27
Documents
3
Effectiveness Date
2014-11-18

Document Format Files

Seq Description Document Type Size
1 POSASR a2222255zposasr.htm POSASR 266001
2 EX-5.2 a2222255zex-5_2.htm EX-5.2 7738
3 G476909.JPG g476909.jpg GRAPHIC 4658
  Complete submission text file 0001047469-14-009303.txt   301405
Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MARKWEST HYDROCARBON INC (Filer) CIK: 0001019756 (see all company filings)

IRS No.: 841352233 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-06 | Film No.: 141229600
SIC: 1311 Crude Petroleum & Natural Gas

Mailing Address 1515 ARAPAHOE STREET TOWER 1, SUITE 1600 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET TOWER 1, SUITE 1600 DENVER CO 80202 303-925-9200
MARKWEST ENERGY PARTNERS L P (Filer) CIK: 0001166036 (see all company filings)

IRS No.: 270005456 | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605 | Film No.: 141229570
SIC: 1311 Crude Petroleum & Natural Gas

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Energy Operating CO LLC (Filer) CIK: 0001292406 (see all company filings)

IRS No.: 270005448 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-27 | Film No.: 141229599

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
West Shore Processing CO LLC (Filer) CIK: 0001292408 (see all company filings)

IRS No.: 760501616 | State of Incorp.: MI | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-26 | Film No.: 141229598

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Energy Appalachia LLC (Filer) CIK: 0001292409 (see all company filings)

IRS No.: 470852385 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-25 | Film No.: 141229597

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 70 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 70 DENVER CO 80202-2126 303-925-9200
MarkWest Michigan Pipeline CO LLC (Filer) CIK: 0001292411 (see all company filings)

IRS No.: 830375568 | State of Incorp.: MI | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-23 | Film No.: 141229596

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Oklahoma Gas CO LLC (Filer) CIK: 0001292413 (see all company filings)

IRS No.: 861089780 | State of Incorp.: OK | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-22 | Film No.: 141229595

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Power Tex LLC (Filer) CIK: 0001292414 (see all company filings)

IRS No.: 450537840 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-16 | Film No.: 141229594

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Pinnacle LLC (Filer) CIK: 0001292415 (see all company filings)

IRS No.: 300157461 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-20 | Film No.: 141229593

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202 303-925-9200
MarkWest PNG Utility LLC (Filer) CIK: 0001292416 (see all company filings)

IRS No.: 300157467 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-19 | Film No.: 141229592

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Texas PNG Utility LLC (Filer) CIK: 0001292417 (see all company filings)

IRS No.: 300157468 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-18 | Film No.: 141229591

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Blackhawk LLC (Filer) CIK: 0001292418 (see all company filings)

IRS No.: 300157471 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-17 | Film No.: 141229590

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest New Mexico LLC (Filer) CIK: 0001292419 (see all company filings)

IRS No.: 300157474 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-21 | Film No.: 141229589

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Pipeline CO LLC (Filer) CIK: 0001315242 (see all company filings)

IRS No.: 000000000 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-15 | Film No.: 141229588

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Energy East Texas Gas CO LLC (Filer) CIK: 0001315262 (see all company filings)

IRS No.: 201311706 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-13 | Film No.: 141229587

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Energy Finance CORP (Filer) CIK: 0001315263 (see all company filings)

IRS No.: 201805917 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-28 | Film No.: 141229601
SIC: 1311 Crude Petroleum & Natural Gas

Mailing Address 1515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9278
Markwest Javelina Pipeline CO LLC (Filer) CIK: 0001349174 (see all company filings)

IRS No.: 382909338 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-11 | Film No.: 141229586

Mailing Address 1515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Javelina CO LLC (Filer) CIK: 0001349175 (see all company filings)

IRS No.: 760263770 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-12 | Film No.: 141229585

Mailing Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET, TOWER 2, SUITE 700 DENVER CO 80202 303-925-9200
MarkWest Energy GP, L.L.C. (Filer) CIK: 0001412304 (see all company filings)

IRS No.: 010636219
Type: POSASR | Act: 33 | File No.: 333-184605-07 | Film No.: 141229584

Mailing Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 HOUSTON TX 80202
Business Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 HOUSTON TX 80202 3039259200
Mason Pipeline LTD Liability CO (Filer) CIK: 0001435921 (see all company filings)

IRS No.: 000000000 | State of Incorp.: MI | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-24 | Film No.: 141229583

Mailing Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 HOUSTON TX 80202
Business Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 HOUSTON TX 80202 3039259200
MarkWest Marketing, L.L.C. (Filer) CIK: 0001435922 (see all company filings)

IRS No.: 262430225 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-05 | Film No.: 141229582

Mailing Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 HOUSTON TX 80202
Business Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 HOUSTON TX 80202 3039259200
MarkWest Gas Services, L.L.C. (Filer) CIK: 0001435923 (see all company filings)

IRS No.: 261795927 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-08 | Film No.: 141229581

Mailing Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 HOUSTON TX 80202
Business Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 HOUSTON TX 80202 3039259200
MarkWest Liberty Gas Gathering, L.L.C. (Filer) CIK: 0001435924 (see all company filings)

IRS No.: 262368254 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-09 | Film No.: 141229580

Mailing Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET TOWER II, SUITE 700 DENVER CO 80202 3039259200
Matrex, L.L.C. (Filer) CIK: 0001435926 (see all company filings)

IRS No.: 841349848 | State of Incorp.: MI | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-10 | Film No.: 141229579

Mailing Address 1515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Gas Marketing, L.L.C. (Filer) CIK: 0001457473 (see all company filings)

IRS No.: 262827902 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-04 | Film No.: 141229578

Mailing Address 1515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 1515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest McAlester, L.L.C. (Filer) CIK: 0001457474 (see all company filings)

IRS No.: 263195589 | State of Incorp.: OK | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-03 | Film No.: 141229577

Mailing Address 1515 ARAPAHOE STREET TOWER 1, SUITE 1600 DENVER CO 80202-2137
Business Address 1515 ARAPAHOE STREET TOWER 1, SUITE 1600 DENVER CO 80202-2137 (303) 925-9200
MarkWest Ranger Pipeline Company, L.L.C. (Filer) CIK: 0001512400 (see all company filings)

IRS No.: 274613260 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-02 | Film No.: 141229576

Mailing Address 1515 ARAPAHOE STREET TOWER I, STE. 1600 DENVER CO 80202-2137
Business Address 1515 ARAPAHOE STREET TOWER I, STE. 1600 DENVER CO 80202-2137 (303) 925-9200
MarkWest Mountaineer Pipeline Company, L.L.C. (Filer) CIK: 0001533090 (see all company filings)

IRS No.: 453160452 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-01 | Film No.: 141229575

Mailing Address 1515 ARAPAHOE STREET, TOWER 1 SUITE 1600 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET, TOWER 1 SUITE 1600 DENVER CO 80202 (303) 925-9200
MarkWest Utica Operating Company, L.L.C. (Filer) CIK: 0001555528 (see all company filings)

IRS No.: 800773356 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-14 | Film No.: 141229574

Mailing Address 1515 ARAPAHOE STREET TOWER 1, SUITE 1600 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET TOWER 1, SUITE 1600 DENVER CO 80202 (303) 925-9200
MarkWest Texas LPG Pipeline, L.L.C. (Filer) CIK: 0001565135 (see all company filings)

IRS No.: 900906688 | State of Incorp.: TX | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-29 | Film No.: 141229573

Mailing Address 1515 ARAPAHOE STREET, TOWER 1 SUITE 1600 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET, TOWER 1 SUITE 1600 DENVER CO 80202 303-925-9200
MarkWest Buffalo Creek Gas Company, L.L.C. (Filer) CIK: 0001625169 (see all company filings)

IRS No.: 320408108 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-32 | Film No.: 141229572

Mailing Address 1515 ARAPAHOE STREET, TOWER 1 SUITE 1600 DENVER CO 80202
Business Address 1515 ARAPAHOE STREET, TOWER 1 SUITE 1600 DENVER CO 80202 303-925-9200
MarkWest Energy South Texas Gas Company, L.L.C. (Filer) CIK: 0001625171 (see all company filings)

IRS No.: 800901416 | State of Incorp.: DE | Fiscal Year End: 1231
Type: POSASR | Act: 33 | File No.: 333-184605-31 | Film No.: 141229571