<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Version>2.4.0.8</Version><ReportLongName>2118100 - Disclosure - Subsequent Events</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

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</LabelSeparator><Level>1</Level><ElementName>us-gaap_SubsequentEventsAbstract</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText /><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>xbrli:stringItemType</ElementDataType><SimpleDataType>string</SimpleDataType><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Subsequent Events [Abstract]</Label></Row><Row FlagID="0"><Id>2</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>2</Level><ElementName>us-gaap_SubsequentEventsTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>terseLabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="D2013Q2YTD" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Subsequent Events&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;padding-bottom:16px;text-align:left;text-indent:48px;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;On July&amp;#160;3, 2013, Steel Energy entered into a credit agreement (the &amp;#8220;Credit Agreement&amp;#8221;) with Wells Fargo Bank National Association, RBS Citizens, N.A., and Comerica Bank.  The Credit Agreement provided for a borrowing capacity of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;$80.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; consisting of (i)&amp;#160;a &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;$70.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; secured term loan (the &amp;#8220;Term Loan&amp;#8221;) that was fully drawn by Steel Energy on July&amp;#160;3, 2013, and (ii)&amp;#160;up to &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;$10.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; in revolving loans (the &amp;#8220;Revolving Loans&amp;#8221;).  The proceeds of the Term Loan, along with proceeds from intercompany loans to Steel Energy from its wholly owned subsidiaries Sun Well and Rogue Pressure Services, Inc. ("Rogue"), were used to pay the Company a dividend of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;$80.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; and certain fees and expenses related to the Credit Agreement.  The Credit Agreement has a &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;five&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;-year term, with the Term Loan amortizing in quarterly installments of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;$2.5 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; commencing September 30, 2013, and a balloon payment due on the maturity date.  Borrowings under the Credit Agreement are collateralized by substantially all the assets of Steel Energy, Sun Well, and Rogue and a pledge of all of the issued and outstanding shares of capital stock of Sun Well and Rogue, and are fully guaranteed by Sun Well and Rogue.  The Company filed a current report on Form 8-K related to the Credit Agreement on July 10, 2013.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-indent:48px;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;On July 11, 2013, the Company entered into a Stock Purchase and Sale Agreement with iGo, Inc. (the &amp;#8220;iGo Agreement&amp;#8221;) pursuant to which the Company commenced a cash tender offer (the &amp;#8220;Offer&amp;#8221;) to purchase up to &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;44%&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of the outstanding shares of iGo's common stock (the "iGo Shares") on a fully-diluted basis at a price per share of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;$3.95&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; (the &amp;#8220;Offer Price&amp;#8221;), subject to the terms and conditions set forth in the iGo Agreement. The transaction has been approved by the boards of directors of both iGo and the Company.  Under the terms of the iGo Agreement, the Company's obligation to accept for payment and pay for the iGo Shares tendered in the Offer is conditioned upon, among other things, the tender of at least &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;30%&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of the total number of outstanding shares of iGo's common stock on a fully-diluted basis. The Offer expires on August 22, 2013.  The iGo Agreement further provides that if, upon the expiration of the Offer, more than &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;30%&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; but less than &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;44%&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of iGo's common stock then outstanding on a fully-diluted basis is tendered in the Offer, the Company is obligated to purchase from iGo newly issued shares of iGo's common stock at the Offer Price so that such number of newly issued shares of common stock, when added to the number of shares of common stock owned by the Company following consummation of the Offer, constitutes &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;color:#000000;text-decoration:none;"&gt;44%&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of iGo's common stock then outstanding on a fully-diluted basis.  The Company filed a current report on Form 8-K related to the iGo Agreement on July 12, 2013.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. 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