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<P STYLE="margin-top: 0; text-align: center; margin-bottom: 0"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Washington, D.C. 20549</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>FORM 8-K</B></P>

<P STYLE="font: 18pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>CURRENT REPORT PURSUANT TO SECTION 13
OR 15(d)<BR>
OF THE SECURITIES EXCHANGE ACT OF 1934</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>DATE OF REPORT (DATE OF EARLIEST EVENT
REPORTED)<BR>
August 7, 2012 (July 31, 2012)</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 18pt"><B>BREITBURN
ENERGY PARTNERS L.P.</B></FONT><FONT STYLE="font-size: 10pt"><BR>
(Exact name of Registrant as specified in its charter)</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR>
    <TD STYLE="width: 34%; vertical-align: top; padding-left: 0.7pt; text-align: center"><B>Delaware</B></TD>
    <TD STYLE="width: 2%; vertical-align: bottom; padding-left: 0.7pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 31%; vertical-align: top; padding-left: 0.7pt; font-weight: bold; text-align: center">001-33055</TD>
    <TD STYLE="width: 2%; vertical-align: bottom; padding-left: 0.7pt; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 31%; vertical-align: top; padding-left: 0.7pt; font-weight: bold; text-align: center">74-3169953</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; padding-left: 0.7pt; text-align: center">(State or other jurisdiction of<BR> incorporation or organization)</TD>
    <TD STYLE="vertical-align: bottom; padding-left: 0.7pt; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-left: 0.7pt; text-align: center">(Commission<BR> File Number)</TD>
    <TD STYLE="vertical-align: bottom; padding-left: 0.7pt; text-align: center">&nbsp;</TD>
    <TD STYLE="vertical-align: top; padding-left: 0.7pt; text-align: center">(I.R.S. Employer<BR> Identification No.)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt"><B>515 South
Flower Street, Suite 4800<BR>
Los Angeles, CA 90071<BR>
</B>(Address of principal executive office)</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>(213) 225-5900<BR>
</B>(Registrant&rsquo;s telephone number, including area code)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT> Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT> Soliciting material
pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT> Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Wingdings"><FONT STYLE="font-family: Wingdings">&#168;</FONT></FONT> Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>8.01&nbsp;&nbsp;Other Events.</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><I>2013 Annual Meeting</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">On July 31, 2012, the Board of Directors
(the &ldquo;Board&rdquo;) of BreitBurn GP, LLC, the general partner of the Partnership (the &ldquo;General Partner&rdquo;) determined
that the 2013 Annual Meeting of the Limited Partners of the Partnership (the &ldquo;2013 Annual Meeting&rdquo;) will be held on
June 19, 2013 at a time and location in Los Angeles, California to be determined by the authorized officers of the General Partner
and specified in the proxy statement for the 2013 Annual Meeting.&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B><I>Nomination Period for the 2012 Annual Meeting</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">In accordance with the provisions of Section&nbsp;13.4(b)(vi)(A)(2)
of the First Amended and Restated Agreement of Limited Partnership of the Partnership, dated as of October 10, 2006, as amended
(as so amended, the &ldquo;LP Agreement&rdquo;), the Board of the General Partner has determined that for purposes of the 2013
Annual Meeting, a Limited Partner&rsquo;s notice of nominations of persons for election to the Board of the General Partner will
be considered timely if such notice is delivered to the General Partner not later than the close of business on March 23, 2013,
nor earlier than the close of business on February&nbsp;21, 2013.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;<B><I>Record Date for the 2013 Annual Meeting</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">The Board of the General Partner has established
the close of business on April 25, 2013 as the record date for the determination of the Limited Partners entitled to receive notice
of and to vote at the Annual Meeting and at any adjournments or postponements thereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; font: 10pt Times New Roman, Times, Serif; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; font-weight: bold">&nbsp;</TD>
    <TD COLSPAN="3" STYLE="padding-right: 2.8pt; font-weight: bold">BREITBURN ENERGY PARTNERS L.P.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 51%; padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="width: 2%; padding-right: 0.8pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="width: 4%; padding-right: 0.8pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="width: 1%; padding-right: 0.8pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="width: 42%; padding-right: 0.8pt; font-weight: bold">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">By:</TD>
    <TD STYLE="padding-right: 0.8pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt; font-weight: bold">BreitBurn GP, LLC,</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">its general partner</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt">Date:&nbsp;&nbsp;&nbsp; August 7, 2012</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">By:</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="border-bottom: black 1pt solid; padding-right: 0.8pt">/s/ Gregory C. Brown</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">Gregory C. Brown</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 0.8pt; font-weight: bold">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">&nbsp;</TD>
    <TD STYLE="padding-right: 0.8pt">Executive Vice President and General Counsel</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 24pt; text-align: center"></P>

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT PURSUANT TO SECTION 13
OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
DATE OF REPORT (DATE OF EARLIEST EVENT
REPORTED)
August 7, 2012 (July 31, 2012)
BREITBURN
ENERGY PARTNERS L.P.
(Exact name of Registrant as specified in its charter)
Delaware
001-33055
74-3169953
(State or other jurisdiction of
incorporation or organization)
(Commission
File Number)
(I.R.S. Employer
Identification No.)
515 South
Flower Street, Suite 4800
Los Angeles, CA 90071
(Address of principal executive office)
(213) 225-5900
(Registrant's telephone number, including area code)
Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
¨
Written communications
pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨
Soliciting material
pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨
Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
1
8.01  Other Events.
2013 Annual Meeting
On July 31, 2012, the Board of Directors
(the "Board") of BreitBurn GP, LLC, the general partner of the Partnership (the "General Partner") determined
that the 2013 Annual Meeting of the Limited Partners of the Partnership (the "2013 Annual Meeting") will be held on
June 19, 2013 at a time and location in Los Angeles, California to be determined by the authorized officers of the General Partner
and specified in the proxy statement for the 2013 Annual Meeting.
Nomination Period for the 2012 Annual Meeting
In accordance with the provisions of Section 13.4(b)(vi)(A)(2)
of the First Amended and Restated Agreement of Limited Partnership of the Partnership, dated as of October 10, 2006, as amended
(as so amended, the "LP Agreement"), the Board of the General Partner has determined that for purposes of the 2013
Annual Meeting, a Limited Partner's notice of nominations of persons for election to the Board of the General Partner will
be considered timely if such notice is delivered to the General Partner not later than the close of business on March 23, 2013,
nor earlier than the close of business on February 21, 2013.
Record Date for the 2013 Annual Meeting
The Board of the General Partner has established
the close of business on April 25, 2013 as the record date for the determination of the Limited Partners entitled to receive notice
of and to vote at the Annual Meeting and at any adjournments or postponements thereof.
2
SIGNATURES
Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized.
BREITBURN ENERGY PARTNERS L.P.
By:
BreitBurn GP, LLC,
its general partner
Date:    August 7, 2012
By:
/s/ Gregory C. Brown
Gregory C. Brown
Executive Vice President and General Counsel
3