EDGAR Filing Documents for 0001193125-12-212535

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:

SEC Accession No. 0001193125-12-212535

Filing Date

2012-05-07

Accepted

2012-05-04 18:39:03

Documents

Period of Report

2012-03-31

Document Format Files

Seq	Description	Document	Type	Size
1	FORM 10-Q	d327527d10q.htm	10-Q	350888
2	SECTION 302 CEO CERTIFICATION	d327527dex311.htm	EX-31.1	9173
3	SECTION 302 CFO CERTIFICATION	d327527dex312.htm	EX-31.2	9380
4	SECTION 906 CEO CERTIFICATION	d327527dex321.htm	EX-32.1	3449
5	SECTION 906 CFO CERTIFICATION	d327527dex322.htm	EX-32.2	3492
	Complete submission text file	0001193125-12-212535.txt		2360534

Data Files

Seq	Description	Document	Type	Size
6	XBRL INSTANCE DOCUMENT	drq-20120331.xml	EX-101.INS	308829
7	XBRL TAXONOMY EXTENSION SCHEMA	drq-20120331.xsd	EX-101.SCH	18839
8	XBRL TAXONOMY EXTENSION CALCULATION LINKBASE	drq-20120331_cal.xml	EX-101.CAL	36766
9	XBRL TAXONOMY EXTENSION DEFINITION LINKBASE	drq-20120331_def.xml	EX-101.DEF	9939
10	XBRL TAXONOMY EXTENSION LABEL LINKBASE	drq-20120331_lab.xml	EX-101.LAB	156423
11	XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE	drq-20120331_pre.xml	EX-101.PRE	106969

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Business Address 6401 N. ELDRIDGE PARKWAY HOUSTON TX 77041 7139397711