UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	January 23, 2007 9:15 A.M.

Form:	S-4
CIK: 0001166036 Company Name: MARKWEST ENERGY PARTNERS L P File Number: 333-139151
CIK: 0001315242 Company Name: MarkWest Pipeline CO LP File Number: 333-139151-21
CIK: 0001315262 Company Name: MarkWest Energy East Texas Gas CO LP File Number: 333-139151-20
CIK: 0001315263 Company Name: MarkWest Energy Finance CORP File Number: 333-139151-19
CIK: 0001292417 Company Name: MarkWest Texas PNG Utility LP File Number: 333-139151-18
CIK: 0001292416 Company Name: MarkWest PNG Utility LP File Number: 333-139151-17
CIK: 0001292413 Company Name: MarkWest Western Oklahoma Gas CO LLC File Number: 333-139151-16
CIK: 0001292415 Company Name: MarkWest Pinnacle LP File Number: 333-139151-15
CIK: 0001292411 Company Name: MarkWest Michigan Pipeline CO LLC File Number: 333-139151-14
CIK: 0001292410 Company Name: MW Texas LTD LLC File Number: 333-139151-13
CIK: 0001292412 Company Name: MarkWest Texas GP LLC File Number: 333-139151-12
CIK: 0001292409 Company Name: MarkWest Energy Appalachia LLC File Number: 333-139151-11
CIK: 0001292408 Company Name: West Shore Processing CO LLC File Number: 333-139151-10
CIK: 0001292407 Company Name: Basin Pipeline LLC File Number: 333-139151-09
CIK: 0001292419 Company Name: MarkWest New Mexico LP File Number: 333-139151-08
CIK: 0001292406 Company Name: MarkWest Energy Operating CO LLC File Number: 333-139151-07
CIK: 0001292414 Company Name: MarkWest Power Tex LP File Number: 333-139151-06
CIK: 0001292418 Company Name: MarkWest Blackhawk LP File Number: 333-139151-05
CIK: 0001349175 Company Name: MarkWest Javelina CO File Number: 333-139151-04
CIK: 0001349173 Company Name: MarkWest Javelina Holding CO LP File Number: 333-139151-03
CIK: 0001349174 Company Name: Markwest Javelina Pipeline CO File Number: 333-139151-02
CIK: 0001349172 Company Name: MarkWest Javelina Pipeline Holding, LP File Number: 333-139151-01