EDGAR Filing Documents for 0000859905-10-000002

Form 4 - Statement of changes in beneficial ownership of securities:

SEC Accession No. 0000859905-10-000002

Filing Date

2010-02-23

Accepted

2010-02-23 17:20:36

Documents

Period of Report

2010-02-22

Document Format Files

Seq	Description	Document	Type	Size
1	PRIMARY DOCUMENT	primary_doc.html	4
1	PRIMARY DOCUMENT	primary_doc.xml	4	3463
	Complete submission text file	0000859905-10-000002.txt		5517

Mailing Address 6 DESTA DRIVE, SUITE 1100 MIDLAND TX 79705

Business Address 6 DESTA DRIVE, SUITE 1100 MIDLAND TX 79705 4326826324

SOUTHWEST OIL & GAS INCOME FUND X-A LP (Issuer) CIK: 0000859905 (see all company filings)

IRS No.: 752310854 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 1311 Crude Petroleum & Natural Gas

Mailing Address SIX DESTA DRIVE STE 6500 MIDLAND TX 79705

Business Address SIX DESTA DR STE 6500 MIDLAND TX 79705 9156826324

CLAYTON WILLIAMS ENERGY INC /DE (Reporting) CIK: 0000880115 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 000-18996 | Film No.: 10627421
SIC: 1311 Crude Petroleum & Natural Gas