Atlas America Series 27-2006 L.P. Watch

EX-10.1

from 8-K 13 pages Assignment and Bill of Sale

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EX-10.24

from 10-12G 12 pages Continuing Guaranty Agreement Dated December 18, 2006 by Atlas Energy Resources, LLC in Favor of Wachovia Bank, National Association, as Administrative Agent for the Lenders Continuing Guaranty Agreement

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EX-10.22

from 10-12G 6 pages Amendment and Joinder to Gas Gathering Agreements

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EX-10.21

from 10-12G 8 pages Amendment and Joinder to Omnibus Agreement Dated December 18, 2006, Among Atlas Pipeline Partners, L.P. and Atlas Pipeline Operating Partnership, L.P., Atlas America, Inc., Resource Energy, LLC, Viking Resources, LLC, Atlas Energy Resources, LLC, and Atlas Energy Operating Company, LLC Amendment and Joinder to Omnibus Agreement

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EX-10.20

from 10-12G 18 pages Management Agreement Dated December 18, 2006 Among Atlas Energy Resources, LLC, Atlas Energy Operating Company, LLC, and Atlas Energy Management, Inc. Management Agreement

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EX-10.19

from 10-12G 8 pages Omnibus Agreement Dated December 18, 2006 Between Atlas Energy Resources, LLC and Atlas America, Inc. Omnibus Agreement

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EX-10.18

from 10-12G 25 pages Contribution, Conveyance and Assumption Agreement Dated December 18, 2006 Among Atlas America, Inc., Atlas Energy Resources, LLC, and Atlas Energy Operating Company, LLC Contribution, Conveyance and Assumption Agreement

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EX-10.17

from 10-12G 6 pages Amendment Among Atlas Pipeline Partners, L.P. and Atlas Pipeline Operating Partnership, L.P., Atlas America, Inc., Resource Energy, Inc., Viking Resources Corporation, Atlas Noble Corp., and Atlas Resources, Inc. to the Master Natural Gas Gathering Agreement Dated February 2, 2000 and the Natural Gas Gathering Agreement Dated January 1, 2002

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EX-10.16

from 10-12G 32 pages Drilling and Operating Agreement Dated September 15, 2004 by and Between Atlas America, Inc. and Knox Energy, LLC

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EX-10.15

from 10-12G 6 pages Guaranty Dated January 1, 2005 Between Ugi Corporation and Viking Resources Corp. Guaranty

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EX-10.14

from 10-12G 4 pages Transaction Confirmation Dated December 14, 2004 Between Atlas America, Inc. and Ugi Energy Services, Inc. D/B/a/ Gasmark

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EX-10.13

from 10-12G 5 pages Confirmation of Gas Purchase and Sales Agreement Dated November 17, 2004 Between Atlas Resources, Inc. Et. Al. and First Energy Solutions Corp. for the Period From April 1, 2006 Through March 31, 2007 Production/Calendar Periods

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EX-10.12

from 10-12G 5 pages Guaranty as of December 7, 2004 Between Firstenergy Corp. and Atlas Resources, Inc

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EX-10.11

from 10-12G 7 pages Re. Guaranty for Ugi Energy Services, Inc

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EX-10.10

from 10-12G 9 pages Third Amendment to Base Contract for Sale and Purchase of Natural Gas Third Amendment to Base Gas Purchase Agreement

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EX-10.9

from 10-12G 6 pages Second Amendment to Base Contract for Sale and Purchase of Natural Gas Second Amendment to Base Contract for the Sale and Purchase of Natural Gas

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EX-10.8

from 10-12G 8 pages First Amendment to Base Contract for Sale and Purchase of Natural Gas First Amendment to Base Contract for the Sale and Purchase of Natural Gas

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EX-10.7

from 10-12G 24 pages Base Contract for Sale and Purchase of Natural Gas Dated November 13, 2002 Between Ugi Energy Services, Inc. and Viking Resources Corp

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EX-10.6

from 10-12G 14 pages Natural Gas Gathering Agreement Dated January 1, 2002 Among Atlas Pipeline Partners, L.P., and Atlas Pipeline Operating Partnership, L.P. and Atlas Resources, Inc., and Atlas Energy Group, Inc. and Atlas Noble Corporation, and Resource Energy Inc., and Viking Resources Corporation Natural Gas Gathering Agreement

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EX-10.5

from 10-12G 10 pages Omnibus Agreement Dated February 2, 2000 Among Atlas America, Inc., Resource Energy, Inc., and Viking Resources Corporation, and Atlas Pipeline Operating Partnership, L.P., and Atlas Pipeline Partners, L.P. Omnibus Agreement

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