UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC  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) July 28, 2015

CORPORATE OFFICE PROPERTIES TRUST

CORPORATE OFFICE PROPERTIES, L.P.

(Exact name of registrant as specified in its charter)

Corporate Office Properties Trust	Maryland	1-14023	23-2947217
	(State or other jurisdiction of	(Commission File	(IRS Employer
	incorporation or organization)	Number)	Identification No.)
Corporate Office Properties, L.P.	Delaware	333-189188	23-2930022
	(State or other jurisdiction of	(Commission File	(IRS Employer
	incorporation or organization)	Number)	Identification No.)

6711 Columbia Gateway Drive, Suite 300

Columbia, Maryland 21046

(Address of principal executive offices)

(443) 285-5400

(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 (see General Instruction A.2 below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 2.02.             Results of Operations and Financial Condition

On July 28, 2015, Corporate Office Properties Trust (the “Company”) issued a press release relating to its financial results for the three and six month periods ended June 30, 2015 and, in connection with this release, is making available certain supplemental information pertaining to its properties and operations as of and for the period ended June 30, 2015.  The earnings release and supplemental information are included as Exhibit 99.1 to this report and are incorporated herein by reference.

The information included herein, including the exhibits, shall not be deemed “filed” for any purpose, including the purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or subject to liabilities of that Section.  The information included herein, including the exhibits, shall also not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act regardless of any general incorporation language in such filing.

Item 9.01.             Financial Statements and Exhibits

(a)	Financial Statements of Businesses Acquired
	None
(b)	Pro Forma Financial Information
	None
(c)	Shell Company Transactions
	None
(d)	Exhibits

Exhibit Number	Exhibit Title
99.1	Corporate Office Properties Trust earnings release and supplemental information for the period ended June 30, 2015, including the press release dated July 28, 2015

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	CORPORATE OFFICE PROPERTIES TRUST		CORPORATE OFFICE PROPERTIES, L.P.
			By: Corporate Office Properties Trust,
			its General Partner
	/s/ Anthony Mifsud		/s/ Anthony Mifsud
	Anthony Mifsud		Anthony Mifsud
	Executive Vice President and Chief Financial Officer		Executive Vice President and Chief Financial Officer
Dated:	July 28, 2015	Dated:	July 28, 2015

EXHIBIT INDEX

Exhibit Number	Exhibit Title
99.1	Corporate Office Properties Trust earnings release and supplemental information for the period ended June 30, 2015, including the press release dated July 28, 2015