Oasis Midstream Partners LP	9 Months Ended
Sep. 30, 2017
Related Party Transactions [Abstract]
Oasis Midstream Partners LP	Oasis Midstream Partners LP Oasis Midstream Partners LP OMP is a growth-oriented, fee-based master limited partnership formed by the Company to own, develop, operate and acquire a diversified portfolio of midstream assets in North America that are integral to the oil and natural gas operations of Oasis and are strategically positioned to capture volumes from other producers. Initial Public Offering of Oasis Midstream Partners LP On September 25, 2017, OMP completed its IPO of 7,500,000 common units representing limited partner interests in OMP at a price to the public of $17.00 per common unit ($15.98 per common unit, net of underwriting discounts and commisions). OMP received net proceeds from the IPO of approximately $115.8 million after deducting underwriting discounts, structuring fees and estimated offering expenses and distributed $113.7 million of the net proceeds to Oasis during the third quarter of 2017. Pursuant to the underwriting agreement, OMP granted the underwriters a 30-day option to purchase up to an aggregate of 1,125,000 additional common units (the “Underwriters’ Option”) on the same terms, which was exercised in full on October 10, 2017 and resulted in additional net proceeds of approximately $17.9 million after deducting underwriting discounts and structuring fees. OMP distributed the additional net proceeds of approximately $17.9 million from the Underwriters’ Option to Oasis on October 10, 2017. The common units are traded on the New York Stock Exchange under the symbol OMP. In exchange for contributed assets, Oasis received 5,125,000 common units and 13,750,000 subordinated units, representing a limited partner interest in OMP and the right to receive cash distributions from OMP. In addition to and concurrent with the closing of the IPO, OMP GP retained a non-economic general partnership interest and was issued incentive distribution rights in OMP. Class B Units in OMP General Partner LLC On May 22, 2017, OMP GP granted restricted Class B Units to certain employees, including OMP’s executive officers, as consideration for services to Oasis, OMP GP, and OMP, which vest over a ten-year period. The restricted Class B Units represent 10% of the outstanding units of OMP GP. Compensation expense is recognized ratably over the requisite service period. Contractual Arrangements In connection with the OMP IPO, the Company entered into several 15-year, fee-based contractual arrangements with OMP for midstream services, including (i) gas gathering, compression, processing and gas lift services; (ii) crude gathering, stabilization, blending, storage and transportation services; (iii) produced and flowback water gathering and disposal services; and (iv) freshwater supply and distribution services. In addition, the Company provides substantial labor and overhead support for OMP. Upon completion of the OMP IPO, the Company entered into a 15-year services and secondment agreement with OMP pursuant to which the Company provides all personnel, equipment, electricity, chemicals and services (including third-party services) required for OMP to operate such assets, and OMP reimburses the Company for its share of the actual costs of operating such assets. In addition, pursuant to the services and secondment agreement, the Company performs centralized corporate, general and administrative services for OMP, such as legal, corporate recordkeeping, planning, budgeting, regulatory, accounting, billing, business development, treasury, insurance administration and claims processing, risk management, health, safety and environmental, information technology, human resources, investor relations, cash management and banking, payroll, internal audit, taxes and engineering. The Company has also seconded to OMP certain of its employees to operate, construct, manage and maintain its assets, and OMP reimburses the Company for direct general and administrative expenses incurred by the Company for the provision of the above services. The expenses of executive officers and non-executive employees are allocated to OMP based on the amount of time spent managing its business and operations.

Oasis Midstream Partners LP

OMP is a growth-oriented, fee-based master limited partnership formed by the Company to own, develop, operate and acquire a diversified portfolio of midstream assets in North America that are integral to the oil and natural gas operations of Oasis and are strategically positioned to capture volumes from other producers.

Initial Public Offering of Oasis Midstream Partners LP

On September 25, 2017, OMP completed its IPO of 7,500,000 common units representing limited partner interests in OMP at a price to the public of $17.00 per common unit ($15.98 per common unit, net of underwriting discounts and commisions). OMP received net proceeds from the IPO of approximately $115.8 million after deducting underwriting discounts, structuring fees and estimated offering expenses and distributed $113.7 million of the net proceeds to Oasis during the third quarter of 2017. Pursuant to the underwriting agreement, OMP granted the underwriters a 30-day option to purchase up to an aggregate of 1,125,000 additional common units (the “Underwriters’ Option”) on the same terms, which was exercised in full on October 10, 2017 and resulted in additional net proceeds of approximately $17.9 million after deducting underwriting discounts and structuring fees. OMP distributed the additional net proceeds of approximately $17.9 million from the Underwriters’ Option to Oasis on October 10, 2017. The common units are traded on the New York Stock Exchange under the symbol OMP.

In exchange for contributed assets, Oasis received 5,125,000 common units and 13,750,000 subordinated units, representing a limited partner interest in OMP and the right to receive cash distributions from OMP. In addition to and concurrent with the closing of the IPO, OMP GP retained a non-economic general partnership interest and was issued incentive distribution rights in OMP.

Class B Units in OMP General Partner LLC

On May 22, 2017, OMP GP granted restricted Class B Units to certain employees, including OMP’s executive officers, as consideration for services to Oasis, OMP GP, and OMP, which vest over a ten-year period. The restricted Class B Units represent 10% of the outstanding units of OMP GP. Compensation expense is recognized ratably over the requisite service period.

Contractual Arrangements

In connection with the OMP IPO, the Company entered into several 15-year, fee-based contractual arrangements with OMP for midstream services, including (i) gas gathering, compression, processing and gas lift services; (ii) crude gathering, stabilization, blending, storage and transportation services; (iii) produced and flowback water gathering and disposal services; and (iv) freshwater supply and distribution services. In addition, the Company provides substantial labor and overhead support for OMP. Upon completion of the OMP IPO, the Company entered into a 15-year services and secondment agreement with OMP pursuant to which the Company provides all personnel, equipment, electricity, chemicals and services (including third-party services) required for OMP to operate such assets, and OMP reimburses the Company for its share of the actual costs of operating such assets. In addition, pursuant to the services and secondment agreement, the Company performs centralized corporate, general and administrative services for OMP, such as legal, corporate recordkeeping, planning, budgeting, regulatory, accounting, billing, business development, treasury, insurance administration and claims processing, risk management, health, safety and environmental, information technology, human resources, investor relations, cash management and banking, payroll, internal audit, taxes and engineering. The Company has also seconded to OMP certain of its employees to operate, construct, manage and maintain its assets, and OMP reimburses the Company for direct general and administrative expenses incurred by the Company for the provision of the above services. The expenses of executive officers and non-executive employees are allocated to OMP based on the amount of time spent managing its business and operations.