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NGS        0001084991    
Filing Date Form Type Description Document
2013-03-20 4 MAIN DOCUMENT DESCRIPTION View Document
2013-03-15 10-K 10-K View Document
2013-03-14 8-K 8-K View Document
2013-02-15 EFFECT View Document
2013-02-14 8-K 8-K View Document
2013-02-13 SC 13G/A NONE View Document
2013-02-12 CORRESP View Document
2013-02-11 SC 13G/A SCHEDULE 13G/A View Document
2013-02-07 SC 13G/A View Document
2013-02-05 SC 13G/A View Document
2013-01-28 S-3/A AMENDMENT NO. 1 TO FORM S-3 View Document
2013-01-17 SC 13G View Document
2013-01-15 4 MAIN DOCUMENT DESCRIPTION View Document
2013-01-03 4 MAIN DOCUMENT DESCRIPTION View Document
2012-12-18 8-K 8-K View Document
2012-12-14 4 MAIN DOCUMENT DESCRIPTION View Document
2012-12-14 4 MAIN DOCUMENT DESCRIPTION View Document
2012-12-04 4 MAIN DOCUMENT DESCRIPTION View Document
2012-11-19 UPLOAD View Document
2012-11-09 8-K 8-K Q3 2012 View Document
2012-11-09 10-Q 10-Q View Document
2012-10-31 S-3 FORM S-3 View Document
2012-10-11 8-K 8-K OCT 2012 LAWRENCE COMP INCREASE View Document
2012-08-08 10-Q 2012 6.30 10-Q View Document
2012-08-07 8-K Q2 2012 EARNINGS 8-K View Document
2012-06-15 8-K View Document
2012-05-22 4 MAIN DOCUMENT DESCRIPTION View Document
2012-05-10 8-K FORM 8-K View Document
2012-05-10 10-Q View Document
2012-04-30 DEFA14A DEFA14A View Document
2012-04-27 DEF 14A NGSG 2011 PROXY View Document
2012-03-30 4 MAIN DOCUMENT DESCRIPTION View Document
2012-03-30 4 MAIN DOCUMENT DESCRIPTION View Document
2012-03-30 4 MAIN DOCUMENT DESCRIPTION View Document
2012-03-30 4 MAIN DOCUMENT DESCRIPTION View Document
2012-03-30 4 OWNERSHIP DOCUMENT View Document
2012-03-14 10-K NGSG 2011 FORM 10-K View Document
2012-03-08 8-K NGSG 4TH QUARTER EARNINGS RELEASE 2011 View Document
2012-02-14 SC 13G/A NONE View Document
2012-02-14 SC 13G/A SCHEDULE 13G/A View Document
2012-02-13 SC 13G/A View Document
2012-02-07 SC 13G/A View Document
2012-02-02 4/A MAIN DOCUMENT DESCRIPTION View Document
2012-02-02 4/A MAIN DOCUMENT DESCRIPTION View Document
2012-01-31 8-K 8-K 2012 COMPENSATION View Document
2012-01-27 4 MAIN DOCUMENT DESCRIPTION View Document
2012-01-27 4 MAIN DOCUMENT DESCRIPTION View Document
2012-01-27 4 MAIN DOCUMENT DESCRIPTION View Document
2012-01-09 8-K NGS FORM 8-K View Document
2011-12-20 3 MAIN DOCUMENT DESCRIPTION View Document
2011-12-20 8-K NGS FORM 8K - DIRECTOR APPOINTMENT View Document
2011-11-14 8-K NGS FORM 8-K View Document
2011-11-09 10-Q NGS FORM 10-Q 9.30.11 View Document
2011-09-06 8-K NGS FORM 8-K View Document
2011-08-25 4 MAIN DOCUMENT DESCRIPTION View Document
2011-08-09 10-Q NGS FORM 10-Q 06.30.11 View Document
2011-08-08 8-K/A NGS AMENDED FORM 8-K View Document
2011-08-05 8-K NGS FORM 8-K View Document
2011-08-01 8-K NGS FORM 8-K View Document
2011-08-01 4 MAIN DOCUMENT DESCRIPTION View Document
2011-06-20 3 MAIN DOCUMENT DESCRIPTION View Document
2011-06-20 8-K NGS FORM 8-K View Document
2011-06-17 4 MAIN DOCUMENT DESCRIPTION View Document
2011-06-17 4 MAIN DOCUMENT DESCRIPTION View Document
2011-06-10 SC 13G/A DOC ONE View Document
2011-05-10 8-K NGS FORM 8-K View Document
2011-05-10 10-Q NGS FORM 10-Q View Document
2011-05-02 DEFA14A DEFA14A View Document
2011-04-29 DEF 14A 2011 PROXY STATEMENT View Document
2011-04-13 4 MAIN DOCUMENT DESCRIPTION View Document
2011-04-13 4 MAIN DOCUMENT DESCRIPTION View Document
2011-04-13 4 MAIN DOCUMENT DESCRIPTION View Document
2011-04-13 4 MAIN DOCUMENT DESCRIPTION View Document
2011-04-13 4 View Document
2011-03-10 10-K FORM 10-K EOY 12/31/2010 View Document
2011-03-02 8-K NGS FORM 8-K View Document
2011-02-14 SC 13G/A DOC ONE View Document
2011-02-11 SC 13G SCHEDULE 13G View Document
2011-02-10 SC 13G/A View Document
2011-02-10 SC 13G/A View Document
2011-02-07 SC 13G/A View Document
2011-02-07 SC 13G/A View Document
2011-01-31 4 MAIN DOCUMENT DESCRIPTION View Document
2011-01-28 3 MAIN DOCUMENT DESCRIPTION View Document
2011-01-28 8-K NGS FORM 8-K, RESTRICTED SHARES AWARDED View Document
2011-01-26 4 MAIN DOCUMENT DESCRIPTION View Document
2011-01-26 4 MAIN DOCUMENT DESCRIPTION View Document
2011-01-24 UPLOAD View Document
2011-01-24 CORRESP View Document
2011-01-10 4 MAIN DOCUMENT DESCRIPTION View Document
2010-12-29 4 MAIN DOCUMENT DESCRIPTION View Document
2010-12-27 CORRESP View Document
2010-12-16 4/A MAIN DOCUMENT DESCRIPTION View Document
2010-12-16 4 MAIN DOCUMENT DESCRIPTION View Document
2010-12-16 8-K NGS FORM 8-K View Document
2010-12-16 4 MAIN DOCUMENT DESCRIPTION View Document
2010-12-15 4 MAIN DOCUMENT DESCRIPTION View Document
2010-12-14 UPLOAD View Document
2010-11-03 10-Q NGS THIRD QUARTER 2010 FORM 10-Q View Document
2010-11-03 8-K NGS EARNINGS RELEASE FORM 8-K View Document

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