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			<nameOfIssuer>Approach Resources,  Inc.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>03834A103</cusip>
			<value>2517</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1002872</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>1002872</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Bank of Montreal</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>063671101</cusip>
			<value>5887</value>
			<shrsOrPrnAmt>
				<sshPrnamt>78718</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>78718</Shared>
				<None>0</None>
			</votingAuthority>
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		<infoTable>
			<nameOfIssuer>Danaher Corp.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>235851102</cusip>
			<value>641</value>
			<shrsOrPrnAmt>
				<sshPrnamt>7500</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>7500</Shared>
				<None>0</None>
			</votingAuthority>
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		<infoTable>
			<nameOfIssuer>EnLink Midstream Partners LLC</nameOfIssuer>
			<titleOfClass>COM UNIT</titleOfClass>
			<cusip>29336T100</cusip>
			<value>36511</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1882007</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>1882007</Shared>
				<None>0</None>
			</votingAuthority>
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		<infoTable>
			<nameOfIssuer>Ford Motor Company</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>345370860</cusip>
			<value>931</value>
			<shrsOrPrnAmt>
				<sshPrnamt>80000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>80000</Shared>
				<None>0</None>
			</votingAuthority>
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		<infoTable>
			<nameOfIssuer>Hallador Energy   Company</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>40609P105</cusip>
			<value>22337</value>
			<shrsOrPrnAmt>
				<sshPrnamt>2788685</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>2788685</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>iShares Core S&amp;P Mid- Cap (IJH)</nameOfIssuer>
			<titleOfClass>Index ETF</titleOfClass>
			<cusip>464287507</cusip>
			<value>6575</value>
			<shrsOrPrnAmt>
				<sshPrnamt>38400</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>38400</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Star Gas Partners L.P.</nameOfIssuer>
			<titleOfClass>UNIT</titleOfClass>
			<cusip>85512C105</cusip>
			<value>1840</value>
			<shrsOrPrnAmt>
				<sshPrnamt>200000</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>200000</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>TCP Capital Corp.</nameOfIssuer>
			<titleOfClass>COM</titleOfClass>
			<cusip>87238Q103</cusip>
			<value>1333</value>
			<shrsOrPrnAmt>
				<sshPrnamt>76546</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>76546</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Vanguard Index Value  ETF (VTV)</nameOfIssuer>
			<titleOfClass>Value ETF</titleOfClass>
			<cusip>922908744</cusip>
			<value>7356</value>
			<shrsOrPrnAmt>
				<sshPrnamt>77126</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>77126</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Vanguard Index Mid- Cap Value ETF  (VOE)</nameOfIssuer>
			<titleOfClass>Value ETF</titleOfClass>
			<cusip>922908512</cusip>
			<value>6273</value>
			<shrsOrPrnAmt>
				<sshPrnamt>61550</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>61550</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>Vanguard Growth ETF  (VUG)</nameOfIssuer>
			<titleOfClass>Growth ETF</titleOfClass>
			<cusip>922908736</cusip>
			<value>3954</value>
			<shrsOrPrnAmt>
				<sshPrnamt>32500</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<votingAuthority>
				<Sole>0</Sole>
				<Shared>32500</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
</informationTable>
