<SEC-DOCUMENT>0001209191-18-040413-index.html : 20180702
<SEC-HEADER>0001209191-18-040413.hdr.sgml : 20180702
<ACCEPTANCE-DATETIME>20180702170334
ACCESSION NUMBER:		0001209191-18-040413
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180702
FILED AS OF DATE:		20180702
DATE AS OF CHANGE:		20180702

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROGERS JAMES E
		CENTRAL INDEX KEY:			0001182166

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32190
		FILM NUMBER:		18933580

	MAIL ADDRESS:	
		STREET 1:		1021 EAST CARY STREET
		STREET 2:		PO BOX 2350
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23218-2350

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEWMARKET CORP
		CENTRAL INDEX KEY:			0001282637
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			1215

	BUSINESS ADDRESS:	
		STREET 1:		330 S FOURTH ST
		STREET 2:		PO BOX 2189
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23218-2189
		BUSINESS PHONE:		804-788-5000

	MAIL ADDRESS:	
		STREET 1:		330 S FOURTH ST
		STREET 2:		PO BOX 2189
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23218-2189
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
Document 1 - file: doc4.html

Document 1 - RAW XML: doc4.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>2
<FILENAME>attachment1.htm
<DESCRIPTION>EX-24.1 DOCUMENT
<TEXT>
Document 2 - file: attachment1.htm

</DOCUMENT>
</SEC-DOCUMENT>