<SEC-DOCUMENT>0001036325-12-000027.txt : 20120214
<SEC-HEADER>0001036325-12-000027.hdr.sgml : 20120214
<ACCEPTANCE-DATETIME>20120214142657
ACCESSION NUMBER:		0001036325-12-000027
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20120214
DATE AS OF CHANGE:		20120214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DUPONT FABROS TECHNOLOGY, INC.
		CENTRAL INDEX KEY:			0001407739
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE [6500]
		IRS NUMBER:				208718331
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-83226
		FILM NUMBER:		12607819

	BUSINESS ADDRESS:	
		STREET 1:		1212 NEW YORK AVENUE, NW, SUITE 900
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20005
		BUSINESS PHONE:		202-728-0044

	MAIL ADDRESS:	
		STREET 1:		1212 NEW YORK AVENUE, NW, SUITE 900
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20005

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DAVIS SELECTED ADVISERS
		CENTRAL INDEX KEY:			0001036325
		IRS NUMBER:				850360310
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		2949 E. ELVIRA ROAD
		STREET 2:		SUITE 101
		CITY:			TUCSON
		STATE:			AZ
		ZIP:			85706
		BUSINESS PHONE:		(520)806-7600

	MAIL ADDRESS:	
		STREET 1:		2949 E. ELVIRA ROAD
		STREET 2:		SUITE 101
		CITY:			TUCSON
		STATE:			AZ
		ZIP:			85706
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>dnb13g123111.txt
<DESCRIPTION>DAVIS SELECTED ADVISERS
<TEXT>

                                    UNITED STATES
                        SECURITIES AND EXCHANGE COMMISSION
                              Washington, D.C. 20549

                                    SCHEDULE 13G
                      Under the Securities Exchange Act of 1934
                                   (Amendment No.12)*


				   D & B Corp.
--------------------------------------------------------------------------------
                                 (Name of Issuer)


                                  Common Stock
--------------------------------------------------------------------------------
                        (Title of Class of Securities)

                                   26483E100
--------------------------------------------------------------------------------
                                 (CUSIP Number)


                               December 31, 2011
--------------------------------------------------------------------------------
            (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

                                [X] Rule 13d-1(b)

                                [_] Rule 13d-1(c)

                                [_] Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).

------------------------------------------------------------------------------

-----------------------
  CUSIP No.   26483E100               13G
-----------------------

------------------------------------------------------------------------------
 1.   Name of Reporting Person
      I.R.S. Identification No. of above Person

      Davis Selected Advisers, L.P.		85-0360310

------------------------------------------------------------------------------
 2.   Check the Appropriate Box if a Member of a Group
                                                                (a) [_]
                                                                (b) [X]

------------------------------------------------------------------------------
 3.   SEC Use Only


------------------------------------------------------------------------------
 4.   Citizenship or Place of Organization

      Colorado Limited Partnership

------------------------------------------------------------------------------
                     5.   Sole Voting Power

     Number of                        0 shares

      Shares        ----------------------------------------------------------
                     6.   Shared or No Voting Power
   Beneficially		              0 (Shared)
                                      0 (No Vote)
     Owned by
                    ----------------------------------------------------------
       Each          7.   Sole Dispositive Power

    Reporting                  	      0 shares

      Person        ----------------------------------------------------------
                     8.   Shared Dispositive Power
       With:
                                      0

------------------------------------------------------------------------------
 9.   Aggregate Amount Beneficially Owned by Each Reporting Person

        0 shares

------------------------------------------------------------------------------
10.   Check if the Aggregate Amount in Row (9) Excludes Certain Shares

                                                                   [_]
	n/a
------------------------------------------------------------------------------
11.   Percent of Class Represented by Amount in Row (9)

       0.00%
------------------------------------------------------------------------------
12.   Type of Reporting Person

      IA
-------------------------------------------------------------------------------

-----------------------
  CUSIP No.   26483E100
-----------------------

------------------------------------------------------------------------------
 1.   Name of Reporting Person
      I.R.S. Identification No. of above Person

      Davis New York Venture Fund		13-2601967

------------------------------------------------------------------------------
 2.   Check the Appropriate Box if a Member of a Group
                                                                (a) [_]
                                                                (b) [X]

------------------------------------------------------------------------------
 3.   SEC Use Only


------------------------------------------------------------------------------
 4.   Citizenship or Place of Organization

      Maryland Corporation

------------------------------------------------------------------------------
                     5.   Sole Voting Power

     Number of                         0

      Shares        ----------------------------------------------------------
                     6.   Shared Voting Power
   Beneficially
                                       0 shares
     Owned by
                    ----------------------------------------------------------
       Each          7.   Sole Dispositive Power

    Reporting                          0

      Person        ----------------------------------------------------------
                     8.   Shared Dispositive Power
       With:
                                       0 shares

------------------------------------------------------------------------------
 9.   Aggregate Amount Beneficially Owned by Each Reporting Person

          0 shares

------------------------------------------------------------------------------
10.   Check if the Aggregate Amount in Row (9) Excludes Certain Shares

                                                                   [_]
	n/a
------------------------------------------------------------------------------
11.   Percent of Class Represented by Amount in Row (9)

      0.0%
------------------------------------------------------------------------------
12.   Type of Reporting Person

      IV
-------------------------------------------------------------------------------

Item 1(a). Name of Issuer:
           D & B Corp.

Item 1(b). Address of Issuer's Principal Executive Offices:
           103 JFK PARKWAY
	   SHORT HILLS, NJ 07078

Item 2(a) and (b). Names and Principal Business Addresses of Persons Filing:

	(1) Davis Selected Advisers, L.P.
	    2949 East Elvira Road, Suite 101
            Tucson, Arizona 85756

	(2) Davis New York Venture Fund
	    c/o Davis Selected Advisers, L.P.
	    2949 East Elvira Road, Suite 101
            Tucson, Arizona 85756

Item 2(c). Citizenship:

           Davis Selected Advisers, L.P. - Colorado Limited Partnership

	   Davis New York Venture Fund - Maryland Corporation

Item 2(d). Title of Class of Securities:
           Common Stock

Item 2(e). CUSIP Number:
           26483E100

Item 3. If this statement is filed pursuant to Rules 13d-1(b) or
13d-2(b) or (c), check whether the person filing is a :

(e) Investment Adviser registered under Section 203 of the Investment
    Advisers Act of 1940.  This statement is being filed by Davis
    Selected Advisers, L.P. as a registered investment adviser.
    All of the securities covered by this report are owned legally
    by Davis Selected Advisers investment advisory clients and none
    are owned directly or indirectly by Davis Selected Advisers.
    As permitted by Rule 13d-4, the filing of this statement shall
    not be construed as an admission that Davis Selected Advisers, L.P.
    is the beneficial owner of any of the securities covered by this
    statement.


--------------------------------------------------------------------------------

Item 4. Ownership.

(a). Amount beneficially owned:
     0 shares

(b). Percent of Class:
     0.00%

(c). Number of shares as to which such person has:

(i). Sole power to vote or to direct the vote:
     0 shares

(ii). Shared or no power to vote or to direct the vote:
      0 shares

(iii). Sole power to dispose or to direct the disposition of:
       0 shares

(iv). Shared power to dispose or to direct the disposition of:
      0 shares

Item 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date hereof
that both reporting persons; Davis Selected Advisers, L.P. and Davis New York
Venture Fund have ceased to be the beneficial owner of more than five
percent of the class of the class of securities, check the following: X

Item 6. Ownership of More than Five Percent on Behalf of Another
Person.
Not Applicable

Item 7. Identification and Classification of the Subsidiary Which
Acquired the Security Being Reported on by the Parent Holding Company.
Not Applicable

Item 8. Identification and Classification of Members of the Group.
Not Applicable

Item 9. Notice of Dissolution of Group.
Not Applicable

Item 10. Certification.
By signing below I certify that, to the best of my knowledge and belief,
the securities referred to above were acquired and are held in the ordinary
course of business and were not acquired and are not held for the purpose
of or with the effect of changing or influencing the control of the issuer
of the securities and were not acquired and are not held in connection with
or as a participant in any transaction having that purpose or effect.


SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete
and correct.

			Davis Selected Advisers, L.P.

	BY		/s/ Sharra Haynes

	PRINT		Sharra Haynes
			Chief Compliance Officer/Vice President


	DATE		February 14, 2012

Joint Filing Agreement

In accordance with Rule 13d-1(k) under the Securities Exchange Act
of 1934, the persons or entities named below agree to the joint
filing on behalf of each of them of this Schedule 13G with respect
to the Securities of the Issuer and further agree that this joint
filing agreement be included as an exhibit to this Schedule 13G. In
evidence thereof, the undersigned hereby execute this Agreement as
of February 14, 2012.


			Davis Selected Advisers, L.P.

	BY		/s/ Sharra Haynes

	PRINT		Sharra Haynes
			Chief Compliance Officer/Vice President


	DATE		February 14, 2012


			Davis New York Venture Fund

	BY		/s/ Thomas Tays

	PRINT		Thomas Tays
			Vice President


	DATE		February 14, 2012
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>