UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:
December 21, 2015
Accession Number:
0001104659-15-083621
Submission Type:
POS AM
CIK:
0001166036
Company Name:
MARKWEST ENERGY PARTNERS L P
File Number:
333-184605
CIK:
0001643186
Company Name:
MarkWest Energy West Texas Gas Company, L.L.C.
File Number:
333-184605-33
CIK:
0001625169
Company Name:
MarkWest Buffalo Creek Gas Company, L.L.C.
File Number:
333-184605-32
CIK:
0001625171
Company Name:
MarkWest Energy South Texas Gas Company, L.L.C.
File Number:
333-184605-31
CIK:
0001565135
Company Name:
MarkWest Texas LPG Pipeline, L.L.C.
File Number:
333-184605-29
CIK:
0001315263
Company Name:
MarkWest Energy Finance CORP
File Number:
333-184605-28
CIK:
0001292406
Company Name:
MarkWest Energy Operating CO LLC
File Number:
333-184605-27
CIK:
0001292408
Company Name:
West Shore Processing CO LLC
File Number:
333-184605-26
CIK:
0001292409
Company Name:
MarkWest Energy Appalachia LLC
File Number:
333-184605-25
CIK:
0001435921
Company Name:
Mason Pipeline LTD Liability CO
File Number:
333-184605-24
CIK:
0001292411
Company Name:
MarkWest Michigan Pipeline CO LLC
File Number:
333-184605-23
CIK:
0001292413
Company Name:
MarkWest Oklahoma Gas CO LLC
File Number:
333-184605-22
CIK:
0001292419
Company Name:
MarkWest New Mexico LLC
File Number:
333-184605-21
CIK:
0001292415
Company Name:
MarkWest Pinnacle LLC
File Number:
333-184605-20
CIK:
0001292416
Company Name:
MarkWest PNG Utility LLC
File Number:
333-184605-19
CIK:
0001292417
Company Name:
MarkWest Texas PNG Utility LLC
File Number:
333-184605-18
CIK:
0001292418
Company Name:
MarkWest Blackhawk LLC
File Number:
333-184605-17
CIK:
0001292414
Company Name:
MarkWest Power Tex LLC
File Number:
333-184605-16
CIK:
0001315242
Company Name:
MarkWest Pipeline CO LLC
File Number:
333-184605-15
CIK:
0001555528
Company Name:
MarkWest Utica Operating Company, L.L.C.
File Number:
333-184605-14
CIK:
0001315262
Company Name:
MarkWest Energy East Texas Gas CO LLC
File Number:
333-184605-13
CIK:
0001349175
Company Name:
MarkWest Javelina CO LLC
File Number:
333-184605-12
CIK:
0001349174
Company Name:
Markwest Javelina Pipeline CO LLC
File Number:
333-184605-11
CIK:
0001435926
Company Name:
Matrex, L.L.C.
File Number:
333-184605-10
CIK:
0001435924
Company Name:
MarkWest Liberty Gas Gathering, L.L.C.
File Number:
333-184605-09
CIK:
0001435923
Company Name:
MarkWest Gas Services, L.L.C.
File Number:
333-184605-08
CIK:
0001412304
Company Name:
MarkWest Energy GP, L.L.C.
File Number:
333-184605-07
CIK:
0001019756
Company Name:
MARKWEST HYDROCARBON INC
File Number:
333-184605-06
CIK:
0001435922
Company Name:
MarkWest Marketing, L.L.C.
File Number:
333-184605-05
CIK:
0001457473
Company Name:
MarkWest Gas Marketing, L.L.C.
File Number:
333-184605-04
CIK:
0001457474
Company Name:
MarkWest McAlester, L.L.C.
File Number:
333-184605-03
CIK:
0001512400
Company Name:
MarkWest Ranger Pipeline Company, L.L.C.
File Number:
333-184605-02
CIK:
0001533090
Company Name:
MarkWest Mountaineer Pipeline Company, L.L.C.
File Number:
333-184605-01