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<p style="font-family:'Times New Roman', Times, serif;font-size:18pt;margin:0pt;text-align:center;"><b>UNITED STATES </b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:18pt;margin:0pt;text-align:center;"><b>SECURITIES AND EXCHANGE COMMISSION</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">Washington, D.C. 20549</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:18pt;margin:0pt;text-align:center;"><b>FORM 8-K</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:18pt;margin:0pt;text-align:center;"><b>CURRENT REPORT</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">Date of report (Date of earliest event reported): August 6, 2018</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:18pt;margin:0pt;text-align:center;"><b>OTTER TAIL CORPORATION</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:center;">(Exact name of registrant as specified in its charter)</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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		<tr>
			<td style="width: 33%; padding-left: 18pt;">Minnesota</td>
			<td style="width: 33%; padding-left: 9pt;">&nbsp;0-53713</td>
			<td style="width: 33%;">27-0383995</td>
		</tr>
		<tr>
			<td>(State or other jurisdiction</td>
			<td>(Commission</td>
			<td>(I.R.S. Employer</td>
		</tr>
		<tr>
			<td>of incorporation)</td>
			<td>File Number)</td>
			<td>Identification No.)</td>
		</tr>

</table>

<p style="margin: 0pt;">&nbsp;</p>

<table border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; font-family: &quot;Times New Roman&quot;, Times, serif; width: 100%;">

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			<td style="width: 50%;">
			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">215 South Cascade Street, P.O. Box 496, Fergus Falls, MN</p>
			</td>
			<td style="width: 50%;">56538-0496</td>
		</tr>
		<tr>
			<td style="width: 50%; padding-left: 18pt;">(Address of principal executive offices)</td>
			<td style="width: 50%; padding-left: 45pt;">(Zip Code)</td>
		</tr>
		<tr>
			<td style="width: 50%;">&nbsp;</td>
			<td style="width: 50%; padding-left: 45pt;">&nbsp;</td>
		</tr>
		<tr>
			<td colspan="2" style="width: 50%;">Registrant&#39;s telephone number, including area code:&nbsp; (866) 410-8780</td>
		</tr>

</table>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">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-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:0pt;margin-top:0pt;text-align:left;">__ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p>

<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:0pt;margin-top:0pt;text-align:left;">__ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</p>

<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:13.5pt;margin-top:0pt;text-align:left;text-indent:-13.5pt;">__ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</p>

<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin-bottom:0pt;margin-left:13.5pt;margin-top:0pt;text-align:left;text-indent:-13.5pt;">__ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</p>

<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">Emerging growth company __</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. __</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&nbsp;</b></p>

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<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Item 2.02 Results of Operations and Financial Condition</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left; text-indent: 36pt; background-color: rgb(255, 255, 255); color: rgb(0, 0, 0);">On August 6, 2018 Otter Tail Corporation issued a press release concerning consolidated financial results for the second quarter of 2018. A copy of the press release is furnished herewith as Exhibit&nbsp;99.1.</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&nbsp;</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&nbsp;</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Item 9.01 Financial Statements and Exhibits</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&nbsp;</b></p>

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			<td style="width: 18pt;">&nbsp;</td>
			<td style="width: 18pt;">
			<p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;">(d)</p>
			</td>
			<td>
			<p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;">Exhibits</p>
			</td>
		</tr>

</table>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<td style="width: 36pt;">&nbsp;</td>
			<td style="width: 36pt;">
			<p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;">99.1</p>
			</td>
			<td>
			<p style="font-family:'Times New Roman', Times, serif;margin-right:0pt;margin-top:0pt;text-align:left;margin-bottom:0pt;font-size:10pt;"><a href="ex_120468.htm" style="-sec-extract:exhibit;">Press Release issued August 6, 2018.</a></p>
			</td>
		</tr>

</table>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&nbsp;</b></p>

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<div id="PGNUM" style="text-align: center; width: 100%">2</div>

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<p style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; margin: 0pt; text-align: left">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>Signature</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;"><b>&nbsp;</b></p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">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, thereunto duly authorized.</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

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			<td style="width: 50%; vertical-align: top;">
			<p style="margin: 0pt; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">&nbsp;</p>

			<p style="margin: 0pt; font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt;">Date: August 7, 2018</p>
			</td>
			<td style="width: 50%;">
			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">OTTER TAIL CORPORATION</p>

			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">&nbsp;</p>

			<p style="font-family:'Times New Roman', Times, serif;font-size:10pt;margin:0pt;text-align:left;">&nbsp;</p>

			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">By: <u>/s/ Kevin G. Moug</u></p>

			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Kevin G. Moug</p>

			<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt 0pt 0pt 18pt; text-align: left;">&nbsp;Chief Financial Officer</p>
			</td>
		</tr>

</table>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: left;">&nbsp;</p>

<p style="font-family: &quot;Times New Roman&quot;, Times, serif; font-size: 10pt; margin: 0pt; text-align: center;">3</p>
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ottr20180806_8k.htm
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 6, 2018
OTTER TAIL CORPORATION
(Exact name of registrant as specified in its charter)
Minnesota
0-53713
27-0383995
(State or other jurisdiction
(Commission
(I.R.S. Employer
of incorporation)
File Number)
Identification No.)
215 South Cascade Street, P.O. Box 496, Fergus Falls, MN
56538-0496
(Address of principal executive offices)
(Zip Code)
Registrant's telephone number, including area code:  (866) 410-8780
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))
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.
Emerging growth company __
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. __
Item 2.02 Results of Operations and Financial Condition
On August 6, 2018 Otter Tail Corporation issued a press release concerning consolidated financial results for the second quarter of 2018. A copy of the press release is furnished herewith as Exhibit 99.1.
Item 9.01 Financial Statements and Exhibits
(d)
Exhibits
99.1
Press Release issued August 6, 2018.
2
Signature
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, thereunto duly authorized.
Date: August 7, 2018
OTTER TAIL CORPORATION
By:
/s/ Kevin G. Moug
Kevin G. Moug
Chief Financial Officer
3