Exhibit 99.1

PRESS RELEASE

NOBLE CORPORATION PLC REPORTS SECOND QUARTER 2014 RESULTS

London, England, July 30, 2014 – Noble Corporation plc (NYSE: NE) today reported second quarter 2014 net income of $235 million, or $0.91 per diluted share, compared to $256 million, or $0.99 per diluted share, for the first quarter of 2014. For the second quarter of 2013, net income totaled $177 million, or $0.69 per diluted share. Results for the second quarter of 2013 included $18 million, or $0.06 per diluted share, related to cancellation of a contract awarded to a jackup rig under construction. Revenues for the second quarter of 2014 were $1.2 billion compared to $1.3 billion in the first quarter of 2014 and $1.0 billion in the second quarter of 2013.

David W. Williams, Chairman, President and Chief Executive Officer of Noble Corporation plc noted, “Second quarter results benefited from our strategy to shift the fleet toward a greater mix of premium rigs with contributions from two new jackup rigs, the Noble Houston Colbert and Noble Regina Allen. In addition, revenues in the quarter were supported by contractual dayrate increases on several rigs and the commencement of a contract for the Noble Paul Romano, which returned to work in May. However, due to planned regulatory inspection and maintenance shipyard projects for several rigs, revenues for the second quarter declined modestly when compared to first quarter 2014.

“As of the close of the second quarter, Noble has added nine new, technically advanced rigs to its fleet since 2011. Two additional new rigs are expected to commence operations during the third quarter with the arrival of the ultra-deepwater drillship Noble Sam Croft in the U.S. Gulf of Mexico and the high-specification jackup Noble Sam Turner in the North Sea. Operating performance on our new rigs has continued to improve due in part to the implementation of previously announced operational readiness procedures and crew competency measures. We believe these improvements are sustainable and should continue to drive operating performance.”

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Contract drilling services revenues for the second quarter of 2014 reached $1.2 billion, a slight decline of less than 1 percent from revenues reported during the first quarter of 2014. The slight decrease was the result of increased non-operating days in the quarter as six rigs began planned shipyard projects, substantially offset by favorable contractual pricing increases, most notably on the Noble Bully II, Noble Roger Lewis, Noble Jimmy Puckett and Noble Discoverer, and revenues received from newbuilds beginning their first contracts. Fleet operating days decreased 4 percent during the quarter due to an increase in shipyard days. As a result, fleet utilization decreased to 79 percent as compared to 84 percent during the first quarter of 2014. Offsetting the utilization decrease was an increase in average daily revenues, up 3 percent in the second quarter to $231,000 compared to the previous quarter average of $223,600, reflecting the addition of premium assets and favorable contract prices on existing rigs. Contract drilling operating costs increased marginally in the second quarter to $577 million compared to $561 million in the first quarter of 2014. Higher costs associated with adding newbuild rigs to the fleet were almost entirely offset by a reduction in mobilization and repair and maintenance costs.

Net cash from operating activities was $526 million in the second quarter of 2014 as compared to $506 million for the first quarter of the year. Capital expenditures in the second quarter totaled $699 million, including $510 million related to the Company’s fleet expansion program. As of June 30, 2014, approximately $1.1 billion in capital expenditures was required to complete the remaining three projects in the Company’s newbuild program, comprised of one ultra-deepwater drillship and two high-specification jackups.

Debt as a percentage of total capitalization at June 30, 2014 was 39 percent, a slight increase from 38 percent at March 31, 2014, while liquidity, defined as cash and cash equivalents plus availability under revolving credit facilities, totaled $772 million compared to $1.03 billion at March 31, 2014. The decrease in liquidity primarily relates to final milestone payments on newbuild rigs, partially offset by cash flows from operating activities.

Operating Highlights

The Company’s total contract backlog at June 30, 2014 was an estimated $13.4 billion compared to $14.3 billion at March 31, 2014, reflecting a reduced pace of customer contractual activity during the first half of 2014.

Utilization of the Company’s floating rig fleet (semisubmersibles and drillships) decreased to 81 percent in the second quarter of 2014 from 85 percent in the first quarter of 2014. Excluding the impact of two cold stacked rigs, utilization would have been 88 percent in the second quarter of 2014 and 92 percent in the first quarter of 2014. The decline in utilization was a result of the Noble Paul Wolff completing its contract with Petrobras in April coupled with downtime for planned maintenance on the Noble Dave Beard in Brazil and the Noble Amos Runner in the U.S. Gulf of Mexico. The Noble Amos Runner project is expected to extend through the third quarter of 2014. Average daily revenues in the floating rig fleet were $401,200 in the second quarter of 2014, an improvement of approximately 2 percent compared to $393,300 in the first quarter of 2014.

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Second quarter 2014 utilization of the Company’s jackup rig fleet was 80 percent, a decrease from 86 percent utilization achieved during the first quarter of 2014. The decline in utilization was due to an increase in shipyard days on certain rigs in West Africa and in the North Sea, together with greater idle time due to the completion of contracts for the Noble David Tinsley and the Noble Kenneth Delaney during the quarter. Average daily revenues during the second quarter improved by approximately 5 percent to $130,900 from $125,000 during the first quarter of 2014. The increase in dayrates is primarily the result of favorable contractual repricing, and the impact of dayrates on the newbuild jackups Noble Regina Allen and Noble Houston Colbert.

At the end of the second quarter of 2014, 74 percent of the Company’s available rig operating days for both floater and jackup units were committed for the remainder of 2014. For 2015, an estimated 50 percent of the available rig operating days were committed, including 59 percent and 46 percent of the floating and jackup rig days, respectively. The calculations for committed operating days include available days for two floaters and one jackup, all of which are currently cold stacked and also contract backlog associated with the Paragon Offshore rigs.

Outlook

Williams closed by stating, “On August 1, Noble will complete the spin-off of Paragon Offshore, creating a separate and distinct company focused on the operation of standard capability rigs. The transaction represents a critical step in transforming Noble into one of the offshore drilling industry’s premier fleets, one possessing the modern features and versatility to address the increasing technical complexity of many of our customers’ well programs today and in the future. As for Paragon, we believe it is positioned to excel in the standard specification drilling sector, with well-maintained and efficient rigs, highly-proficient crews, a strong customer base and a talented management team.

“We are delighted to reach this point in our strategic transformation and believe the completion of the spin-off will provide Noble with an improved competitive posture and an enhanced platform for creating shareholder value. We strongly believe our improved fleet mix, improving operations performance, best-in-class shipyard execution, demonstrated contracting expertise and improving free cash flow, place the Company in an advantageous position to address opportunities expected in the next phase of the industry cycle.”

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About Noble Corporation

Noble is a leading offshore drilling contractor for the oil and gas industry. Noble performs, through its subsidiaries, contract drilling services with a fleet of 77 offshore drilling units (including one ultra-deepwater drillship and two high-specification jackup drilling rigs currently under construction) located worldwide, including in the U.S. Gulf of Mexico and Alaska, Mexico, Brazil, the North Sea, the Mediterranean, West Africa, the Middle East, India, Malaysia, Argentina and Australia.

Following the spin-off of Paragon Offshore, Noble will own and operate one of the most modern, versatile and technically advanced fleets in the offshore drilling industry. The 35 rig fleet, consisting of 20 semisubmersibles and drillships and 15 jackups, are focused largely on ultra-deepwater and high-specification jackup drilling opportunities in many of the world’s established and emerging regions. Noble’s shares are traded on the New York Stock Exchange under the symbol “NE.” Noble Corporation plc is a public limited company registered in England and Wales with company number 08354954 and registered office at Devonshire House, 1 Mayfair Place, London, W1J 8AJ England. Additional information on Noble Corporation is available on the Company’s Web site at http://www.noblecorp.com.

Forward Looking Disclosure Statement

Statements regarding contract backlog, earnings, costs, revenue, rig demand, fleet condition or performance, shareholder value, timing of delivery of newbuilds, contract commitments, dayrates, contract commencements, contract extensions or renewals, letters of intent or award, industry fundamentals, customer relationships and requirements, strategic initiatives, future performance, growth opportunities, market outlook, as well as any other statements that are not historical facts in this release, are forward-looking statements that involve certain risks, uncertainties and assumptions. These include but are not limited to operating hazards and delays, risks associated with operations outside of the U.S., actions by regulatory authorities, customers and other third parties, legislation and regulations affecting drilling operations, compliance with regulatory requirements, factors affecting the level of activity in the oil and gas industry, supply and demand of drilling rigs, factors affecting the duration of contracts, delays in the construction of newbuilds, the actual amount of downtime, factors that reduce applicable dayrates, violations of anti-corruption laws, hurricanes and other weather conditions, the future price of oil and gas and other factors detailed in the Company’s most recent Form 10-K, Form 10-Q’s and other filings with the Securities and Exchange Commission. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those indicated.

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Conference Call

Noble has scheduled a conference call and webcast related to its second quarter 2014 results on Thursday, July 31, 2014, at 8:00 a.m. U.S. Central Daylight Time. Interested parties are invited to listen to the call by dialing 1-866-461-7129, or internationally 1-706-679-3084, using access code: 88248309, or by asking for the Noble Corporation conference call. Interested parties may also listen over the Internet through a link posted in the Investor Relations section of the Company’s Web site.

A replay of the conference call will be available on Thursday, July 31, 2014, beginning at 12:00 p.m. U.S. Central Daylight Time, through Friday, August 29, 2014, ending at 11:00 p.m. U.S. Central Daylight Time. The phone number for the conference call replay is 1-855-859-2056 or, for calls from outside of the U.S., 1-404-537-3406, using access code: 88248309. The replay will also be available on the Company’s Web site following the end of the live call.

For additional information, contact:

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NOBLE CORPORATION PLC AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share amounts)

(Unaudited)

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NOBLE CORPORATION PLC AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(In thousands)

(Unaudited)

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NOBLE CORPORATION PLC AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

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NOBLE CORPORATION PLC AND SUBSIDIARIES

FINANCIAL AND OPERATIONAL INFORMATION BY SEGMENT

(In thousands, except operating statistics)

(Unaudited)

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NOBLE CORPORATION PLC AND SUBSIDIARIES

CALCULATION OF BASIC AND DILUTED NET INCOME PER SHARE

(In thousands, except per share amounts)

(Unaudited)

The following table sets forth the computation of basic and diluted net income per share:

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