NON-DISCLOSURE AND NON-SOLICITATION AGREEMENT

Access to Confidential Information. Employee is employed in a position that, in the course and scope of Employee’s employment, provides Employee access to various trade secrets and confidential information belonging to the Company, including information created by Employee alone or jointly with others. Such information enables Employee to perform services of a unique or special nature. Employee acknowledges Employee’s employment places Employee in a position of trust and confidence with the Company, its shareholders, officers, directors, employees, customers and agents.

Scope of Confidential Information. Black Hills Corporation, its subsidiaries and affiliates (herein referred to collectively as the “Company”) are engaged in diversified energy businesses, including regulated gas and electric utilities, oil and gas exploration, coal mining, and wholesale power generation. Employee acknowledges that the Company’s businesses and services are highly specialized, and the identity and particular needs of the Company’s customers, contract counter-parties, suppliers and contractors are not generally known. The term “Confidential Information”, for purposes of this Agreement, includes all information and material, whether in written, electronic, or oral form, or any other form whatsoever, that is proprietary and has not been publicly disclosed by the Company, including the Company’s trade secrets. Specifically, Confidential Information also includes but is not limited to:

Disclosure and Use of Confidential Information. Employee will use the Confidential Information only for purposes of performing Employee’s duties to the Company, within the course and scope of Employee’s employment. Employee will not use or disclose any Confidential Information, in whole or in part, for any other purpose. Employee agrees to keep confidential all Confidential Information and to preserve the confidential and proprietary nature of the Confidential Information at all times, even following the termination of Employee’s employment for any reason, whether voluntary or involuntary. Employee will not, directly or indirectly, copy, take or remove from the Company’s premises or from secure electronic information systems and hardware any Confidential Information. Nothing in this Agreement prohibits Employee from reporting possible violations of state or federal law or regulations to any governmental agency or entity, including but not limited to the Department of Justice, the Securities and Exchange Commission, the Equal Employment Opportunity Commission, or the Federal Energy Regulatory Commission, or from making other disclosures that are protected under the whistleblower provisions of applicable law. In addition, nothing in this Agreement precludes Employee from participating in government investigations or inquiries relating to the Company.

Ownership and Return of Confidential Information. All right, title and interest in and to Confidential Information will remain the exclusive property of the Company even following termination of Employee’s employment. Nothing in this Agreement will be construed to convey to Employee any right, title or interest or right to use any Confidential Information, except as permitted by this Agreement. Immediately upon the termination of Employee’s employment with the Company, and at any time upon the request of the Company, Employee will return all Confidential Information and Company property in Employee’s possession, including without limitation all originals, copies, notes or any other form of such material, without retaining any copy or duplicates thereof. Employee will return, or if so directed, will delete or destroy any and all written, printed, electronic or other material or information derived from Confidential Information. Employee will deliver to the Company all devices on which Confidential Information is stored, including all electronic or digital copies, without retaining any copy or duplicate thereof. If Employee fails to return the Company’s property or

Obligations to Others. The Company also honors the confidentiality of other companies’ confidential and proprietary information. Employee affirms that Employee has not and will not disclose to the Company or use in Employee’s employment with the Company, in knowing violation of an obligation of confidentiality, any information belonging to a former employer, or that was received under any other obligation of confidentiality.

Injunctive Relief. Employee acknowledges that the interests of the Company would be irreparably harmed, and the remedy at law available to Company for the breach of any obligation under this Agreement would be inadequate. Employee agrees that, in addition to any other remedy available at law or in equity, the Company may be granted temporary or permanent injunctive relief in any proceeding brought to enforce any provision of this Agreement or to prevent the actual or threatened disclosure of Confidential Information, without necessity of proof of actual damage, and without posting a bond.

Non-Competition During Employment. Employee agrees that from the Effective Date until the termination of Employee’s employment, for any reason, whether voluntary or involuntary, Employee will not engage in any activity that is in any way competitive with the business or demonstrably anticipated business of the Company. Employee will not assist any other person or entity in competing or preparing to compete with any business or demonstrably anticipated business of the Company. Employee activity that is prohibited by this Agreement includes, but is not limited to:

Non-Solicitation of Employees and Others. During Employee’s employment and for a period of one (1) year after the termination of Employee’s employment for any reason, whether voluntary or involuntary, Employee agrees that Employee will not directly or indirectly, on Employee’s own behalf or on the behalf of any other individual or entity:

Solicit the employment of any employee of the Company or any of its subsidiaries or affiliates, on behalf of the Employee or any other individual or entity, or otherwise interfere with the employment relationship between any such employee and the Company, its subsidiaries or affiliates;

Solicit, induce, or entice any of the Company’s agents, representatives, consultants, contractors or customers with whom Employee had access during Employee’s employment with the Company, to terminate or alter their relationship with the Company.

Reasonable Restrictions. Employee has carefully read and considered the provisions of this Agreement and, having done so, agrees that the restrictions set forth above, including the time periods of restriction set forth in paragraph 8, are reasonable and are reasonably required for the protection of the interests of the Company. Employee agrees that this Agreement is necessary and designed to protect the Company’s trade secrets and other important business interests.