AMENDMENT TO CONTRACT

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Exhibit 10.33

AMENDMENT TO CONTRACT

THIS AMENDMENT TO CONTRACT is made and entered into this 8^th day of August, 2008, by and between Helmerich & Xxxxx International Drilling Co., hereinafter referred to as "H&P", and Southeast Texas Industries, Inc., hereinafter referred to as "Fabricator" or "STI".

WITNESSETH:

WHEREAS, H&P and STI entered into a Fabrication Contract dated the 1^st day of December, 2006, for certain services defined therein as the "Work" (the "Contract");

WHEREAS, the parties hereto are mutually desirous of amending the terms of the above-referenced Contract as hereafter set forth; and

WHEREAS, the Contract has continued in full force and effect to the present time.

NOW, THEREFORE, in consideration of the rights and obligations passing between the parties, the parties hereto do amend said Contract, as follows, to-wit:

1.: Section 1 of Annex 1 is hereby deleted and replaced with the following:

"1. Quantity—STI will perform the Work for a total of 50 rigs with the number and type of rigs as follows:

a.: Flex3: 24 rigs (R376, R377, R378, R379, R380, R381, R382, R383, R384, R385, R386, R387, R388, R389, R390, R391, R392, R393, R394, R395, R396, R397, R398, R399)
b.: Flex4S: 2 rigs (R343, R350)
c.: Flex4S+: 4 rigs (R329, R330, R353, R354)
d.: Flex4MA: 2 rigs (R351, R352)
e.: Flex 4M: 9 rigs (R336, R337, R338, R339, R340, R344, R345, R346, R347)
f.: Flex5: 2 rigs (R348, R349)
g.: The remaining 7 rigs will be a combination of the various types listed above as determined by H&P."