-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 MDmMOx8hNNxbBgtK3ESMVg==

<SEC-DOCUMENT>0001033333-00-000013.txt : 20000510
<SEC-HEADER>0001033333-00-000013.hdr.sgml : 20000510
ACCESSION NUMBER:		0001033333-00-000013
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20000501
FILED AS OF DATE:		20000509

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SOUTHWEST OIL & GAS INCOME FUND X-C LP
		CENTRAL INDEX KEY:			0000859907
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				752374445
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		
		SEC FILE NUMBER:	000-20299
		FILM NUMBER:		622681

	BUSINESS ADDRESS:	
		STREET 1:		407 NORTH BIG SPRING STE 300
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701
		BUSINESS PHONE:		9156869927

	MAIL ADDRESS:	
		STREET 1:		407 N BIG SPRING ST SUITE 300
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701
<REPORTING-OWNER>

COMPANY DATA:	
	COMPANY CONFORMED NAME:			SOUTHWEST ROYALTIES INC
	CENTRAL INDEX KEY:			0000821699
	STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
<RELATIONSHIP>OWNER
	IRS NUMBER:				751917432
	STATE OF INCORPORATION:			DE
	FISCAL YEAR END:			1231

FILING VALUES:
	FORM TYPE:		4

BUSINESS ADDRESS:	
	STREET 1:		407 N BIG SPRING STREET SUITE 300
	CITY:			MIDLAND
	STATE:			TX
	ZIP:			79701
	BUSINESS PHONE:		9156869927

MAIL ADDRESS:	
	STREET 1:		407 N BIG SPRING STREET SUITE 300
	CITY:			MIDLAND
	STATE:			TX
	ZIP:			79701
</REPORTING-OWNER>
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<TEXT>

                 U. S. Securities and Exchange Commission
                         Washington, D. C. 20549

                                  FORM 4

               STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP


Filed  pursuant to Section 16(a) of the Securities Exchange  Act  of  1934,
Section  17(a) of the Public Utility Holding Company Act of 1935 or Section
30(f) of the Investment Company Act of 1940.

1.   Name and Address of Reporting Person
          J Steven Person
          407 N. Big Spring Street
          Midland, TX  79701

2.   Issuer Name and Ticker or Trading Symbol
          Southwest Oil & Gas Income Fund X-C, L.P.

3.   IRS or Social Security Number of Reporting Person
          ###-##-####

4.   Statement for Month/Year
          May 2000

5.   If Amendment, Date of Original
          N/A

6.   Relationship of Reporting Person to Issuer
                  Vice   President   of   Marketing   assigned   additional
          responsibility of Chief Financial Officer


Date: May 8, 2000                   By:  /s/ J Steven Person
                                        ----------------------------------
                                        J Steven Person, Vice-President of
                                          Marketing  and  Chief   Financial
Officer
                                        of Southwest Royalties, Inc.
                                        the Managing General Partner


<PAGE>


</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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