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Filing Detail
Form S-3ASR - Automatic shelf registration statement of securities of well-known seasoned issuers:
SEC Accession No. 0001047469-06-014249
Filing Date
2006-11-16
Accepted
2006-11-15 19:54:01
Documents
12
Effectiveness Date
2006-11-16

Document Format Files

Seq Description Document Type Size
1 S-3ASR a2173699zs-3asr.htm S-3ASR 383545
2 EX-4.1 a2173699zex-4_1.htm EX-4.1 315472
3 EX-4.2 a2173699zex-4_2.htm EX-4.2 350456
4 EX-5.1 a2173699zex-5_1.htm EX-5.1 12756
5 EX-8.1 a2173699zex-8_1.htm EX-8.1 5263
6 EX-12.1 a2173699zex-12_1.htm EX-12.1 26194
7 EX-23.1 a2173699zex-23_1.htm EX-23.1 2507
8 EX-23.2 a2173699zex-23_2.htm EX-23.2 2387
9 EX-23.3 a2173699zex-23_3.htm EX-23.3 2159
10 EX-23.4 a2173699zex-23_4.htm EX-23.4 2416
11 EX-25.1 a2173699zex-25_1.htm EX-25.1 41089
12 EX-25.2 a2173699zex-25_2.htm EX-25.2 41095
  Complete submission text file 0001047469-06-014249.txt   1199378
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 PARTNERS L P (Filer) CIK: 0001166036 (see all company filings)

IRS No.: 270005456 | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744 | Film No.: 061221308
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: S-3ASR | Act: 33 | File No.: 333-138744-07 | Film No.: 061221306

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
Basin Pipeline LLC (Filer) CIK: 0001292407 (see all company filings)

IRS No.: 383297919 | State of Incorp.: MI | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-09 | Film No.: 061221309

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: S-3ASR | Act: 33 | File No.: 333-138744-10 | Film No.: 061221310

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: S-3ASR | Act: 33 | File No.: 333-138744-11 | Film No.: 061221311

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
MW Texas LTD LLC (Filer) CIK: 0001292410 (see all company filings)

IRS No.: 300157458 | State of Incorp.: DE | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-13 | Film No.: 061221313

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: S-3ASR | Act: 33 | File No.: 333-138744-14 | Film No.: 061221314

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 GP LLC (Filer) CIK: 0001292412 (see all company filings)

IRS No.: 300157456 | State of Incorp.: DE | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-12 | Film No.: 061221312

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 Western Oklahoma Gas CO LLC (Filer) CIK: 0001292413 (see all company filings)

IRS No.: 861089780 | State of Incorp.: OK | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-16 | Film No.: 061221316

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 LP (Filer) CIK: 0001292414 (see all company filings)

IRS No.: 450537840 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-06 | Film No.: 061221305

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 LP (Filer) CIK: 0001292415 (see all company filings)

IRS No.: 300157461 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-15 | Film No.: 061221315

Mailing Address 155 INVERNESS DRIVE WEST, SUITE 200 ENGLEWOOD CO 80112
Business Address 155 INVERNESS DRIVE WEST, SUITE 200 ENGLEWOOD CO 80112 303-290-8700
MarkWest PNG Utility LP (Filer) CIK: 0001292416 (see all company filings)

IRS No.: 300157467 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-17 | Film No.: 061221317

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 LP (Filer) CIK: 0001292417 (see all company filings)

IRS No.: 300157468 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-18 | Film No.: 061221318

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 LP (Filer) CIK: 0001292418 (see all company filings)

IRS No.: 300157471 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-05 | Film No.: 061221304

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 LP (Filer) CIK: 0001292419 (see all company filings)

IRS No.: 300157474 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-08 | Film No.: 061221307

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 LP (Filer) CIK: 0001315242 (see all company filings)

IRS No.: 000000000 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-21 | Film No.: 061221321

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 LP (Filer) CIK: 0001315262 (see all company filings)

IRS No.: 201311706 | State of Incorp.: DE | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-20 | Film No.: 061221320

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: S-3ASR | Act: 33 | File No.: 333-138744-19 | Film No.: 061221319

Mailing Address 11515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126
Business Address 11515 ARAPAHOE STREET TOWER 2, SUITE 700 DENVER CO 80202-2126 303-925-9200
MarkWest Javelina Pipeline Holding, LP (Filer) CIK: 0001349172 (see all company filings)

IRS No.: 364582448 | State of Incorp.: OK | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-01 | Film No.: 061221300

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 Holding CO LP (Filer) CIK: 0001349173 (see all company filings)

IRS No.: 000000000 | State of Incorp.: DE | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-03 | Film No.: 061221302

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 (Filer) CIK: 0001349174 (see all company filings)

IRS No.: 382909338 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-02 | Film No.: 061221301

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 (Filer) CIK: 0001349175 (see all company filings)

IRS No.: 760263770 | State of Incorp.: TX | Fiscal Year End: 1231
Type: S-3ASR | Act: 33 | File No.: 333-138744-04 | Film No.: 061221303