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Allis Chalmers Energy Inc.

SIC 1389 · Oil & Gas Field Services, NEC
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Allis Chalmers Energy Inc.

CIK:0000003982|SEC Filings

INDENTURES

EX-4.1
v197953_ex4-1.htm
Sep 30, 2010
EX-4.1
v190604_ex4-1.htm
Jul 14, 2010
EX-4.1
v170501_ex4-1.htm
Jan 5, 2010
EX-4.19
h68546exv4w19.htm
Nov 9, 2009
EX-4.20
h68546exv4w20.htm
Nov 9, 2009
EX-4.1
c89881exv4w1.htm
Sep 2, 2009
EX-4.1
c87447exv4w1.htm
Jul 1, 2009
EX-4.2
c87447exv4w2.htm
Jul 1, 2009
EX-4.1
h67029exv4w1.htm
Jun 2, 2009
EX-4.2
h67029exv4w2.htm
Jun 2, 2009
EX-4.3
h67029exv4w3.htm
Jun 2, 2009
EX-4.4
h67029exv4w4.htm
Jun 2, 2009
EX-4.5
h67029exv4w5.htm
Jun 2, 2009
EX-4.6
h67029exv4w6.htm
Jun 2, 2009
EX-4.7
h67029exv4w7.htm
Jun 2, 2009
EX-4.1
c86085exv4w1.htm
May 27, 2009
EX-4.1
h43074bexv4w1.htm
Jan 29, 2007
EX-4.4
h41626exv4w4.htm
Dec 1, 2006
EX-4.5
h41626exv4w5.htm
Dec 1, 2006
EX-4.2
h38803bexv4w2.htm
Aug 14, 2006