UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: April 13, 2012 4:00 P.M.
Form: S-3
CIK: 0001532750
Company Name: Atlas Resource Partners, L.P.
File Number: 333-180477
CIK: 0001546092
Company Name: Atlas Resource Finance Corp
File Number: 333-180477-13
CIK: 0001514688
Company Name: Atlas Energy Holdings Operating Company, LLC
File Number: 333-180477-12
CIK: 0001287922
Company Name: ATLAS RESOURCES LLC
File Number: 333-180477-11
CIK: 0001422741
Company Name: Viking Resources, LLC
File Number: 333-180477-10
CIK: 0001422743
Company Name: Resource Energy, LLC
File Number: 333-180477-09
CIK: 0001422735
Company Name: Atlas Noble, LLC
File Number: 333-180477-08
CIK: 0001363567
Company Name: REI-NY Inc
File Number: 333-180477-07
CIK: 0001445514
Company Name: Atlas Energy Indiana, LLC
File Number: 333-180477-06
CIK: 0001445515
Company Name: Atlas Energy Tennessee, LLC
File Number: 333-180477-05
CIK: 0001422734
Company Name: Atlas Energy Ohio, LLC
File Number: 333-180477-04
CIK: 0001422744
Company Name: Resource Well Services, LLC
File Number: 333-180477-03
CIK: 0001546091
Company Name: ARP Barnett, LLC
File Number: 333-180477-02
CIK: 0001546134
Company Name: Atlas Energy Colorado, LLC
File Number: 333-180477-01