XBRL is an XML-based language for the electronic transmission of business and financial data. XBRL is not an accounting standard; it is simply a standard for transmitting business and financial data.
The various XBRL exhibits included on this web page are displayed in their native XML format and have been included to provide you the option of importing them into your XBRL viewer of choice.
Fiscal Year 2017
gass-20171231.xml
gass-20171231.xsd
gass-20171231_cal.xml
gass-20171231_def.xml
gass-20171231_lab.xml
gass-20171231_pre.xml
Fiscal Year 2016
gass-20161231.xml
gass-20161231.xsd
gass-20161231_cal.xml
gass-20161231_def.xml
gass-20161231_lab.xml
gass-20161231_pre.xml
Fiscal Year 2015
gass-20151231.xml
gass-20151231.xsd
gass-20151231_cal.xml
gass-20151231_def.xml
gass-20151231_lab.xml
gass-20151231_pre.xml
Fiscal Year 2014
gass-20141231.xml
gass-20141231.xsd
gass-20141231_cal.xml
gass-20141231_def.xml
gass-20141231_lab.xml
gass-20141231_pre.xml
Fiscal Year 2013
gass-20131231.xml
gass-20131231.xsd
gass-20131231_cal.xml
gass-20131231_def.xml
gass-20131231_lab.xml
gass-20131231_pre.xml
Fiscal Year 2012
gass-20121231.xml
gass-20121231.xsd
gass-20121231_cal.xml
gass-20121231_def.xml
gass-20121231_lab.xml
gass-20121231_pre.xml
9 Months (ended September 30, 2012
gass-20120930.xml
gass-20120930.xsd
gass-20120930_cal.xml
gass-20120930_def.xml
gass-20120930_lab.xml
gass-20120930_pre.xml
Fiscal Year 2011
sgi-20111231.xml
sgi-20111231.xsd
sgi-20111231_cal.xml
sgi-20111231_def.xml
sgi-20111231_lab.xml
sgi-20111231_pre.xml
