Eclipse Resources Provides Operational Update and Upcoming Conference Participation

STATE COLLEGE, Pa.–(BUSINESS WIRE)–Eclipse Resources Corporation (NYSE:ECR) (the “Company” or “Eclipse
Resources”) today is pleased to provide an operational update and
announce its participation in the following upcoming investor
conferences.

Upcoming Conferences Include:

• Wednesday June 21, 2017 (Houston, TX) – Tudor Pickering “Hotter ‘n
  Hell” Conference. Benjamin W. Hulburt (Chairman, President and CEO)
  will participate and host one-on-one meetings.
• Thursday June 22, 2017 (Pittsburgh, PA) – DUG East Conference.
  Benjamin W. Hulburt (Chairman, President and CEO) will deliver the day
  two opening keynote address.
• Wednesday June 28, 2017 (New York, NY) – J.P. Morgan Energy
  Conference. Benjamin W. Hulburt (Chairman, President and CEO) will
  participate and host one-on-one meetings.

Operational Update

The Company has recently turned its seven well Moser pad to sales,
located in the Company’s Utica Shale dry gas window acreage in eastern
Monroe County, Ohio. The Moser pad wells are currently producing
approximately 100 MMcf per day collectively as the Company continues to
implement its “engineered” flowback procedure designed to bring the
wells up to target production rates while preserving fracture
conductivity and minimizing formation damage. These wells were completed
using a number of new completions techniques, which may form the basis
of future completion designs beyond the Company’s “Generation-3” design
that resulted in the Company increasing all of its Utica Shale type well
expectations over the course of the year.

The Company also announced today that it has successfully drilled its
third and newest “Super-Lateral” well, the Outlaw C 11H, with a total
measured depth of approximately 27,750 feet and a lateral extension of
approximately 19,500 feet in 17 days from spud to TD in the Company’s
Utica Shale Condensate area, setting a new lateral length record for the
Company.

Commenting on the operational activity, Benjamin W. Hulburt, Eclipse
Resources Chairman, President and CEO, said the following, “I remain
extremely pleased with our team’s operational cadence, and look forward
to assessing the results from the seven well Moser pad. This pad, which
contains 7 gross (7.0 net) wells with an average lateral length of
approximately 7,200 feet, has recently been turned to sales slightly
ahead of schedule, with starting pressures ranging up to approximately
7,500 pounds (psi). Building upon our Gen-3 frack design, this pad
includes wells which are designed to test higher proppant volumes,
engineered stage lengths and the use of diversion chemicals. Although
extremely early in the life of these new exciting wells, we are
initially very intrigued with what we are seeing. Based on the results
of these wells so far, the continued performance of our Gen-3 wells, and
the team’s ability to shorten our cycle times, I expect our production
in the third quarter 2017 to be at least 350 MMcfe per day.

I am also pleased to announce that we have drilled our third
“Super-Lateral” well, with a record setting lateral length of
approximately 19,500 feet in 17 days. This well, located in the Utica
Condensate area, along with the recently drilled 19,300 foot Great Scott
3H well are expected to begin completions in the third quarter of this
year. Additionally, we have completed the drilling of our second
Marcellus Condensate well and are excited to begin applying our
innovative completion techniques to this portion of our acreage during
the third quarter of 2017. These Marcellus wells should allow us to
further prove-up this area of our acreage that includes over 70 risked
10,000 foot lateral locations that can be developed in conjunction with
our Dry Gas Utica position in this area of southeastern Ohio.”

About Eclipse Resources

Eclipse Resources is an independent exploration and production Company
engaged in the acquisition and development of oil and natural gas
properties in the Appalachian Basin, including the Utica and Marcellus
Shales. For more information, please visit the Company’s website at www.eclipseresources.com.

Forward-Looking Statements

This press release contains “forward-looking statements” within the
meaning of Section 27A of the Securities Act of 1933, as amended (the
“Securities Act”) and Section 21E of the Securities Exchange Act of
1934, as amended (the “Exchange Act”). All statements, other than
statements of historical fact included in this press release, regarding
Eclipse Resources’ strategy, future operations, financial position,
estimated revenues and income/losses, projected costs and capital
expenditures, prospects, plans and objectives of management are
forward-looking statements. When used in this press release, the words
“plan,” “endeavor,” “will,” “would,” “could,” “believe,” “anticipate,”
“intend,” “estimate,” “expect,” “project” and similar expressions are
intended to identify forward-looking statements, although not all
forward-looking statements contain such identifying words. These
forward-looking statements are based on Eclipse Resources’ current
expectations and assumptions about future events and are based on
currently available information as to the outcome and timing of future
events. When considering forward-looking statements, you should keep in
mind the risk factors and other cautionary statements described under
the heading “Risk Factors” in Eclipse Resources’ Annual Report on Form
10-K filed with the Securities Exchange Commission on March 3, 2017 (the
“2016 Annual Report”), and in “Item 1A. Risk Factors” of Eclipse
Resources’ Quarterly Reports on Form 10-Q.

Forward-looking statements may include statements about Eclipse
Resources’ business strategy; reserves; general economic conditions;
financial strategy, liquidity and capital required for developing its
properties and timing related thereto; realized natural gas, NGLs and
oil prices; timing and amount of future production of natural gas, NGLs
and oil; its hedging strategy and results; future drilling plans;
competition and government regulations, including those related to
hydraulic fracturing; the anticipated benefits under its commercial
agreements; pending legal matters relating to its leases; marketing of
natural gas, NGLs and oil; leasehold and business acquisitions; the
costs, terms and availability of gathering, processing, fractionation
and other midstream services; general economic conditions; credit
markets; uncertainty regarding its future operating results, including
initial production rates and liquid yields in its type curve areas; and
plans, objectives, expectations and intentions contained in this press
release that are not historical.

Eclipse Resources cautions you that these forward-looking statements
are subject to all of the risks and uncertainties, most of which are
difficult to predict and many of which are beyond its control, incident
to the exploration for and development, production, gathering and sale
of natural gas, NGLs and oil. These risks include, but are not limited
to; legal and environmental risks, drilling and other operating risks,
regulatory changes, commodity price volatility and the recent
significant decline of the price of natural gas, NGLs, and oil,
inflation, lack of availability of drilling, production and processing
equipment and services, counterparty credit risk, the uncertainty
inherent in estimating natural gas, NGLs and oil reserves and in
projecting future rates of production, cash flow and access to capital,
the timing of development expenditures, and the other risks described
under the heading “Risk Factors” in the 2016 Annual Report and in “Item
1A. Risk Factors” of Eclipse Resources’ Quarterly Reports on Form 10-Q.

All forward-looking statements, expressed or implied, included in
this press release are expressly qualified in their entirety by this
cautionary statement. This cautionary statement should also be
considered in connection with any subsequent written or oral
forward-looking statements that Eclipse Resources or persons acting on
the Company’s behalf may issue.

Contacts

Eclipse Resources Corporation
Douglas Kris, Investor Relations
814-325-2059
[email protected]